From edadd452146f7e4bad4ea684e955708931d84d81 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ulises=20Gasc=C3=B3n?= <ulisesgascongonzalez@gmail.com>
Date: Fri, 5 Dec 2025 19:26:49 +0100
Subject: [PATCH] Prevent prototype pollution on baseUnset function

* test: add tests to prevent security regressions

* sec: prevent prototype pollution on `baseUnset` function

* chore: improve security patch

- Expand both `_.omit` & `_.unset` security tests to loop over `__proto__`, `constructor`, `prototype`
- Only block `__proto__` if not an own property
---
 dist/lodash.js     |  43 ++++++++++++++++-
 dist/lodash.min.js | 112 ++++++++++++++++++++++-----------------------
 lodash.js          |  43 ++++++++++++++++-
 test/test.js       |  30 ++++++++++++
 4 files changed, 168 insertions(+), 60 deletions(-)

diff --git a/dist/lodash.js b/dist/lodash.js
index 1d232ac5e..900cedf3d 100644
--- a/dist/lodash.js
+++ b/dist/lodash.js
@@ -4370,8 +4370,47 @@
      */
     function baseUnset(object, path) {
       path = castPath(path, object);
-      object = parent(object, path);
-      return object == null || delete object[toKey(last(path))];
+
+      // Prevent prototype pollution, see: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg
+      var index = -1,
+          length = path.length;
+
+      if (!length) {
+        return true;
+      }
+
+      var isRootPrimitive = object == null || (typeof object !== 'object' && typeof object !== 'function');
+
+      while (++index < length) {
+        var key = path[index];
+
+        // skip non-string keys (e.g., Symbols, numbers)
+        if (typeof key !== 'string') {
+          continue;
+        }
+
+        // Always block "__proto__" anywhere in the path if it's not expected
+        if (key === '__proto__' && !hasOwnProperty.call(object, '__proto__')) {
+          return false;
+        }
+
+        // Block "constructor.prototype" chains
+        if (key === 'constructor' &&
+            (index + 1) < length &&
+            typeof path[index + 1] === 'string' &&
+            path[index + 1] === 'prototype') {
+
+          // Allow ONLY when the path starts at a primitive root, e.g., _.unset(0, 'constructor.prototype.a')
+          if (isRootPrimitive && index === 0) {
+            continue;
+          }
+
+          return false;
+        }
+      }
+
+      var obj = parent(object, path);
+      return obj == null || delete obj[toKey(last(path))];
     }
 
     /**
diff --git a/dist/lodash.min.js b/dist/lodash.min.js
index 4219da738..843a20ddd 100644
--- a/dist/lodash.min.js
+++ b/dist/lodash.min.js
@@ -45,62 +45,62 @@ var u=t[r];if(r==e||u!==i){var i=u;Ci(u)?Ll.call(n,u,1):yu(n,u)}}return n}functi
 for(var u=-1,i=t.length,o=i-1,f=n;null!=f&&++u<i;){var c=no(t[u]),a=r;if("__proto__"===c||"constructor"===c||"prototype"===c)return n;if(u!=o){var l=f[c];a=e?e(l,c,f):X,a===X&&(a=fc(l)?l:Ci(t[u+1])?[]:{})}Sr(f,c,a),f=f[c]}return n}function cu(n){return Xi(ra(n))}function au(n,t,r){var e=-1,u=n.length;t<0&&(t=-t>u?0:u+t),r=r>u?u:r,r<0&&(r+=u),u=t>r?0:r-t>>>0,t>>>=0;for(var i=il(u);++e<u;)i[e]=n[e+t];return i}function lu(n,t){var r;return ys(n,function(n,e,u){return r=t(n,e,u),!r}),!!r}function su(n,t,r){
 var e=0,u=null==n?e:n.length;if("number"==typeof t&&t===t&&u<=Tn){for(;e<u;){var i=e+u>>>1,o=n[i];null!==o&&!bc(o)&&(r?o<=t:o<t)?e=i+1:u=i}return u}return hu(n,t,La,r)}function hu(n,t,r,e){var u=0,i=null==n?0:n.length;if(0===i)return 0;t=r(t);for(var o=t!==t,f=null===t,c=bc(t),a=t===X;u<i;){var l=Nl((u+i)/2),s=r(n[l]),h=s!==X,p=null===s,_=s===s,v=bc(s);if(o)var g=e||_;else g=a?_&&(e||h):f?_&&h&&(e||!p):c?_&&h&&!p&&(e||!v):!p&&!v&&(e?s<=t:s<t);g?u=l+1:i=l}return Hl(i,Bn)}function pu(n,t){for(var r=-1,e=n.length,u=0,i=[];++r<e;){
 var o=n[r],f=t?t(o):o;if(!r||!Gf(f,c)){var c=f;i[u++]=0===o?0:o}}return i}function _u(n){return"number"==typeof n?n:bc(n)?Cn:+n}function vu(n){if("string"==typeof n)return n;if(bh(n))return c(n,vu)+"";if(bc(n))return vs?vs.call(n):"";var t=n+"";return"0"==t&&1/n==-Sn?"-0":t}function gu(n,t,r){var e=-1,u=o,i=n.length,c=!0,a=[],l=a;if(r)c=!1,u=f;else if(i>=tn){var s=t?null:ks(n);if(s)return P(s);c=!1,u=S,l=new yr}else l=t?[]:a;n:for(;++e<i;){var h=n[e],p=t?t(h):h;if(h=r||0!==h?h:0,c&&p===p){for(var _=l.length;_--;)if(l[_]===p)continue n;
-t&&l.push(p),a.push(h)}else u(l,p,r)||(l!==a&&l.push(p),a.push(h))}return a}function yu(n,t){return t=ku(t,n),n=Gi(n,t),null==n||delete n[no(jo(t))]}function du(n,t,r,e){return fu(n,t,r(_e(n,t)),e)}function bu(n,t,r,e){for(var u=n.length,i=e?u:-1;(e?i--:++i<u)&&t(n[i],i,n););return r?au(n,e?0:i,e?i+1:u):au(n,e?i+1:0,e?u:i)}function wu(n,t){var r=n;return r instanceof Ct&&(r=r.value()),l(t,function(n,t){return t.func.apply(t.thisArg,a([n],t.args))},r)}function mu(n,t,r){var e=n.length;if(e<2)return e?gu(n[0]):[];
-for(var u=-1,i=il(e);++u<e;)for(var o=n[u],f=-1;++f<e;)f!=u&&(i[u]=Hr(i[u]||o,n[f],t,r));return gu(ee(i,1),t,r)}function xu(n,t,r){for(var e=-1,u=n.length,i=t.length,o={};++e<u;){r(o,n[e],e<i?t[e]:X)}return o}function ju(n){return Jf(n)?n:[]}function Au(n){return"function"==typeof n?n:La}function ku(n,t){return bh(n)?n:Bi(n,t)?[n]:Cs(Ec(n))}function Ou(n,t,r){var e=n.length;return r=r===X?e:r,!t&&r>=e?n:au(n,t,r)}function Iu(n,t){if(t)return n.slice();var r=n.length,e=zl?zl(r):new n.constructor(r);
-return n.copy(e),e}function Ru(n){var t=new n.constructor(n.byteLength);return new Rl(t).set(new Rl(n)),t}function zu(n,t){return new n.constructor(t?Ru(n.buffer):n.buffer,n.byteOffset,n.byteLength)}function Eu(n){var t=new n.constructor(n.source,Nt.exec(n));return t.lastIndex=n.lastIndex,t}function Su(n){return _s?ll(_s.call(n)):{}}function Wu(n,t){return new n.constructor(t?Ru(n.buffer):n.buffer,n.byteOffset,n.length)}function Lu(n,t){if(n!==t){var r=n!==X,e=null===n,u=n===n,i=bc(n),o=t!==X,f=null===t,c=t===t,a=bc(t);
-if(!f&&!a&&!i&&n>t||i&&o&&c&&!f&&!a||e&&o&&c||!r&&c||!u)return 1;if(!e&&!i&&!a&&n<t||a&&r&&u&&!e&&!i||f&&r&&u||!o&&u||!c)return-1}return 0}function Cu(n,t,r){for(var e=-1,u=n.criteria,i=t.criteria,o=u.length,f=r.length;++e<o;){var c=Lu(u[e],i[e]);if(c){if(e>=f)return c;return c*("desc"==r[e]?-1:1)}}return n.index-t.index}function Uu(n,t,r,e){for(var u=-1,i=n.length,o=r.length,f=-1,c=t.length,a=Gl(i-o,0),l=il(c+a),s=!e;++f<c;)l[f]=t[f];for(;++u<o;)(s||u<i)&&(l[r[u]]=n[u]);for(;a--;)l[f++]=n[u++];return l;
-}function Bu(n,t,r,e){for(var u=-1,i=n.length,o=-1,f=r.length,c=-1,a=t.length,l=Gl(i-f,0),s=il(l+a),h=!e;++u<l;)s[u]=n[u];for(var p=u;++c<a;)s[p+c]=t[c];for(;++o<f;)(h||u<i)&&(s[p+r[o]]=n[u++]);return s}function Tu(n,t){var r=-1,e=n.length;for(t||(t=il(e));++r<e;)t[r]=n[r];return t}function $u(n,t,r,e){var u=!r;r||(r={});for(var i=-1,o=t.length;++i<o;){var f=t[i],c=e?e(r[f],n[f],f,r,n):X;c===X&&(c=n[f]),u?Br(r,f,c):Sr(r,f,c)}return r}function Du(n,t){return $u(n,Is(n),t)}function Mu(n,t){return $u(n,Rs(n),t);
-}function Fu(n,r){return function(e,u){var i=bh(e)?t:Lr,o=r?r():{};return i(e,n,mi(u,2),o)}}function Nu(n){return uu(function(t,r){var e=-1,u=r.length,i=u>1?r[u-1]:X,o=u>2?r[2]:X;for(i=n.length>3&&"function"==typeof i?(u--,i):X,o&&Ui(r[0],r[1],o)&&(i=u<3?X:i,u=1),t=ll(t);++e<u;){var f=r[e];f&&n(t,f,e,i)}return t})}function Pu(n,t){return function(r,e){if(null==r)return r;if(!Hf(r))return n(r,e);for(var u=r.length,i=t?u:-1,o=ll(r);(t?i--:++i<u)&&e(o[i],i,o)!==!1;);return r}}function qu(n){return function(t,r,e){
-for(var u=-1,i=ll(t),o=e(t),f=o.length;f--;){var c=o[n?f:++u];if(r(i[c],c,i)===!1)break}return t}}function Zu(n,t,r){function e(){return(this&&this!==re&&this instanceof e?i:n).apply(u?r:this,arguments)}var u=t&_n,i=Gu(n);return e}function Ku(n){return function(t){t=Ec(t);var r=T(t)?G(t):X,e=r?r[0]:t.charAt(0),u=r?Ou(r,1).join(""):t.slice(1);return e[n]()+u}}function Vu(n){return function(t){return l(Ra(ca(t).replace($r,"")),n,"")}}function Gu(n){return function(){var t=arguments;switch(t.length){
-case 0:return new n;case 1:return new n(t[0]);case 2:return new n(t[0],t[1]);case 3:return new n(t[0],t[1],t[2]);case 4:return new n(t[0],t[1],t[2],t[3]);case 5:return new n(t[0],t[1],t[2],t[3],t[4]);case 6:return new n(t[0],t[1],t[2],t[3],t[4],t[5]);case 7:return new n(t[0],t[1],t[2],t[3],t[4],t[5],t[6])}var r=gs(n.prototype),e=n.apply(r,t);return fc(e)?e:r}}function Hu(t,r,e){function u(){for(var o=arguments.length,f=il(o),c=o,a=wi(u);c--;)f[c]=arguments[c];var l=o<3&&f[0]!==a&&f[o-1]!==a?[]:N(f,a);
-return o-=l.length,o<e?oi(t,r,Qu,u.placeholder,X,f,l,X,X,e-o):n(this&&this!==re&&this instanceof u?i:t,this,f)}var i=Gu(t);return u}function Ju(n){return function(t,r,e){var u=ll(t);if(!Hf(t)){var i=mi(r,3);t=Pc(t),r=function(n){return i(u[n],n,u)}}var o=n(t,r,e);return o>-1?u[i?t[o]:o]:X}}function Yu(n){return gi(function(t){var r=t.length,e=r,u=Y.prototype.thru;for(n&&t.reverse();e--;){var i=t[e];if("function"!=typeof i)throw new pl(en);if(u&&!o&&"wrapper"==bi(i))var o=new Y([],!0)}for(e=o?e:r;++e<r;){
-i=t[e];var f=bi(i),c="wrapper"==f?Os(i):X;o=c&&$i(c[0])&&c[1]==(mn|yn|bn|xn)&&!c[4].length&&1==c[9]?o[bi(c[0])].apply(o,c[3]):1==i.length&&$i(i)?o[f]():o.thru(i)}return function(){var n=arguments,e=n[0];if(o&&1==n.length&&bh(e))return o.plant(e).value();for(var u=0,i=r?t[u].apply(this,n):e;++u<r;)i=t[u].call(this,i);return i}})}function Qu(n,t,r,e,u,i,o,f,c,a){function l(){for(var y=arguments.length,d=il(y),b=y;b--;)d[b]=arguments[b];if(_)var w=wi(l),m=C(d,w);if(e&&(d=Uu(d,e,u,_)),i&&(d=Bu(d,i,o,_)),
-y-=m,_&&y<a){return oi(n,t,Qu,l.placeholder,r,d,N(d,w),f,c,a-y)}var x=h?r:this,j=p?x[n]:n;return y=d.length,f?d=Hi(d,f):v&&y>1&&d.reverse(),s&&c<y&&(d.length=c),this&&this!==re&&this instanceof l&&(j=g||Gu(j)),j.apply(x,d)}var s=t&mn,h=t&_n,p=t&vn,_=t&(yn|dn),v=t&jn,g=p?X:Gu(n);return l}function Xu(n,t){return function(r,e){return Oe(r,n,t(e),{})}}function ni(n,t){return function(r,e){var u;if(r===X&&e===X)return t;if(r!==X&&(u=r),e!==X){if(u===X)return e;"string"==typeof r||"string"==typeof e?(r=vu(r),
-e=vu(e)):(r=_u(r),e=_u(e)),u=n(r,e)}return u}}function ti(t){return gi(function(r){return r=c(r,z(mi())),uu(function(e){var u=this;return t(r,function(t){return n(t,u,e)})})})}function ri(n,t){t=t===X?" ":vu(t);var r=t.length;if(r<2)return r?eu(t,n):t;var e=eu(t,Fl(n/V(t)));return T(t)?Ou(G(e),0,n).join(""):e.slice(0,n)}function ei(t,r,e,u){function i(){for(var r=-1,c=arguments.length,a=-1,l=u.length,s=il(l+c),h=this&&this!==re&&this instanceof i?f:t;++a<l;)s[a]=u[a];for(;c--;)s[a++]=arguments[++r];
-return n(h,o?e:this,s)}var o=r&_n,f=Gu(t);return i}function ui(n){return function(t,r,e){return e&&"number"!=typeof e&&Ui(t,r,e)&&(r=e=X),t=Ac(t),r===X?(r=t,t=0):r=Ac(r),e=e===X?t<r?1:-1:Ac(e),ru(t,r,e,n)}}function ii(n){return function(t,r){return"string"==typeof t&&"string"==typeof r||(t=Ic(t),r=Ic(r)),n(t,r)}}function oi(n,t,r,e,u,i,o,f,c,a){var l=t&yn,s=l?o:X,h=l?X:o,p=l?i:X,_=l?X:i;t|=l?bn:wn,t&=~(l?wn:bn),t&gn||(t&=~(_n|vn));var v=[n,t,u,p,s,_,h,f,c,a],g=r.apply(X,v);return $i(n)&&Ss(g,v),g.placeholder=e,
-Yi(g,n,t)}function fi(n){var t=al[n];return function(n,r){if(n=Ic(n),r=null==r?0:Hl(kc(r),292),r&&Zl(n)){var e=(Ec(n)+"e").split("e");return e=(Ec(t(e[0]+"e"+(+e[1]+r)))+"e").split("e"),+(e[0]+"e"+(+e[1]-r))}return t(n)}}function ci(n){return function(t){var r=zs(t);return r==Gn?M(t):r==tt?q(t):I(t,n(t))}}function ai(n,t,r,e,u,i,o,f){var c=t&vn;if(!c&&"function"!=typeof n)throw new pl(en);var a=e?e.length:0;if(a||(t&=~(bn|wn),e=u=X),o=o===X?o:Gl(kc(o),0),f=f===X?f:kc(f),a-=u?u.length:0,t&wn){var l=e,s=u;
-e=u=X}var h=c?X:Os(n),p=[n,t,r,e,u,l,s,i,o,f];if(h&&qi(p,h),n=p[0],t=p[1],r=p[2],e=p[3],u=p[4],f=p[9]=p[9]===X?c?0:n.length:Gl(p[9]-a,0),!f&&t&(yn|dn)&&(t&=~(yn|dn)),t&&t!=_n)_=t==yn||t==dn?Hu(n,t,f):t!=bn&&t!=(_n|bn)||u.length?Qu.apply(X,p):ei(n,t,r,e);else var _=Zu(n,t,r);return Yi((h?ms:Ss)(_,p),n,t)}function li(n,t,r,e){return n===X||Gf(n,gl[r])&&!bl.call(e,r)?t:n}function si(n,t,r,e,u,i){return fc(n)&&fc(t)&&(i.set(t,n),Ke(n,t,X,si,i),i.delete(t)),n}function hi(n){return gc(n)?X:n}function pi(n,t,r,e,u,i){
-var o=r&hn,f=n.length,c=t.length;if(f!=c&&!(o&&c>f))return!1;var a=i.get(n),l=i.get(t);if(a&&l)return a==t&&l==n;var s=-1,p=!0,_=r&pn?new yr:X;for(i.set(n,t),i.set(t,n);++s<f;){var v=n[s],g=t[s];if(e)var y=o?e(g,v,s,t,n,i):e(v,g,s,n,t,i);if(y!==X){if(y)continue;p=!1;break}if(_){if(!h(t,function(n,t){if(!S(_,t)&&(v===n||u(v,n,r,e,i)))return _.push(t)})){p=!1;break}}else if(v!==g&&!u(v,g,r,e,i)){p=!1;break}}return i.delete(n),i.delete(t),p}function _i(n,t,r,e,u,i,o){switch(r){case ct:if(n.byteLength!=t.byteLength||n.byteOffset!=t.byteOffset)return!1;
-n=n.buffer,t=t.buffer;case ft:return!(n.byteLength!=t.byteLength||!i(new Rl(n),new Rl(t)));case Nn:case Pn:case Hn:return Gf(+n,+t);case Zn:return n.name==t.name&&n.message==t.message;case nt:case rt:return n==t+"";case Gn:var f=M;case tt:var c=e&hn;if(f||(f=P),n.size!=t.size&&!c)return!1;var a=o.get(n);if(a)return a==t;e|=pn,o.set(n,t);var l=pi(f(n),f(t),e,u,i,o);return o.delete(n),l;case et:if(_s)return _s.call(n)==_s.call(t)}return!1}function vi(n,t,r,e,u,i){var o=r&hn,f=yi(n),c=f.length;if(c!=yi(t).length&&!o)return!1;
-for(var a=c;a--;){var l=f[a];if(!(o?l in t:bl.call(t,l)))return!1}var s=i.get(n),h=i.get(t);if(s&&h)return s==t&&h==n;var p=!0;i.set(n,t),i.set(t,n);for(var _=o;++a<c;){l=f[a];var v=n[l],g=t[l];if(e)var y=o?e(g,v,l,t,n,i):e(v,g,l,n,t,i);if(!(y===X?v===g||u(v,g,r,e,i):y)){p=!1;break}_||(_="constructor"==l)}if(p&&!_){var d=n.constructor,b=t.constructor;d!=b&&"constructor"in n&&"constructor"in t&&!("function"==typeof d&&d instanceof d&&"function"==typeof b&&b instanceof b)&&(p=!1)}return i.delete(n),
-i.delete(t),p}function gi(n){return Ls(Vi(n,X,_o),n+"")}function yi(n){return de(n,Pc,Is)}function di(n){return de(n,qc,Rs)}function bi(n){for(var t=n.name+"",r=fs[t],e=bl.call(fs,t)?r.length:0;e--;){var u=r[e],i=u.func;if(null==i||i==n)return u.name}return t}function wi(n){return(bl.call(Z,"placeholder")?Z:n).placeholder}function mi(){var n=Z.iteratee||Ca;return n=n===Ca?De:n,arguments.length?n(arguments[0],arguments[1]):n}function xi(n,t){var r=n.__data__;return Ti(t)?r["string"==typeof t?"string":"hash"]:r.map;
-}function ji(n){for(var t=Pc(n),r=t.length;r--;){var e=t[r],u=n[e];t[r]=[e,u,Fi(u)]}return t}function Ai(n,t){var r=B(n,t);return Ue(r)?r:X}function ki(n){var t=bl.call(n,Bl),r=n[Bl];try{n[Bl]=X;var e=!0}catch(n){}var u=xl.call(n);return e&&(t?n[Bl]=r:delete n[Bl]),u}function Oi(n,t,r){for(var e=-1,u=r.length;++e<u;){var i=r[e],o=i.size;switch(i.type){case"drop":n+=o;break;case"dropRight":t-=o;break;case"take":t=Hl(t,n+o);break;case"takeRight":n=Gl(n,t-o)}}return{start:n,end:t}}function Ii(n){var t=n.match(Bt);
-return t?t[1].split(Tt):[]}function Ri(n,t,r){t=ku(t,n);for(var e=-1,u=t.length,i=!1;++e<u;){var o=no(t[e]);if(!(i=null!=n&&r(n,o)))break;n=n[o]}return i||++e!=u?i:(u=null==n?0:n.length,!!u&&oc(u)&&Ci(o,u)&&(bh(n)||dh(n)))}function zi(n){var t=n.length,r=new n.constructor(t);return t&&"string"==typeof n[0]&&bl.call(n,"index")&&(r.index=n.index,r.input=n.input),r}function Ei(n){return"function"!=typeof n.constructor||Mi(n)?{}:gs(El(n))}function Si(n,t,r){var e=n.constructor;switch(t){case ft:return Ru(n);
-case Nn:case Pn:return new e(+n);case ct:return zu(n,r);case at:case lt:case st:case ht:case pt:case _t:case vt:case gt:case yt:return Wu(n,r);case Gn:return new e;case Hn:case rt:return new e(n);case nt:return Eu(n);case tt:return new e;case et:return Su(n)}}function Wi(n,t){var r=t.length;if(!r)return n;var e=r-1;return t[e]=(r>1?"& ":"")+t[e],t=t.join(r>2?", ":" "),n.replace(Ut,"{\n/* [wrapped with "+t+"] */\n")}function Li(n){return bh(n)||dh(n)||!!(Cl&&n&&n[Cl])}function Ci(n,t){var r=typeof n;
-return t=null==t?Wn:t,!!t&&("number"==r||"symbol"!=r&&Vt.test(n))&&n>-1&&n%1==0&&n<t}function Ui(n,t,r){if(!fc(r))return!1;var e=typeof t;return!!("number"==e?Hf(r)&&Ci(t,r.length):"string"==e&&t in r)&&Gf(r[t],n)}function Bi(n,t){if(bh(n))return!1;var r=typeof n;return!("number"!=r&&"symbol"!=r&&"boolean"!=r&&null!=n&&!bc(n))||(zt.test(n)||!Rt.test(n)||null!=t&&n in ll(t))}function Ti(n){var t=typeof n;return"string"==t||"number"==t||"symbol"==t||"boolean"==t?"__proto__"!==n:null===n}function $i(n){
-var t=bi(n),r=Z[t];if("function"!=typeof r||!(t in Ct.prototype))return!1;if(n===r)return!0;var e=Os(r);return!!e&&n===e[0]}function Di(n){return!!ml&&ml in n}function Mi(n){var t=n&&n.constructor;return n===("function"==typeof t&&t.prototype||gl)}function Fi(n){return n===n&&!fc(n)}function Ni(n,t){return function(r){return null!=r&&(r[n]===t&&(t!==X||n in ll(r)))}}function Pi(n){var t=Cf(n,function(n){return r.size===fn&&r.clear(),n}),r=t.cache;return t}function qi(n,t){var r=n[1],e=t[1],u=r|e,i=u<(_n|vn|mn),o=e==mn&&r==yn||e==mn&&r==xn&&n[7].length<=t[8]||e==(mn|xn)&&t[7].length<=t[8]&&r==yn;
-if(!i&&!o)return n;e&_n&&(n[2]=t[2],u|=r&_n?0:gn);var f=t[3];if(f){var c=n[3];n[3]=c?Uu(c,f,t[4]):f,n[4]=c?N(n[3],cn):t[4]}return f=t[5],f&&(c=n[5],n[5]=c?Bu(c,f,t[6]):f,n[6]=c?N(n[5],cn):t[6]),f=t[7],f&&(n[7]=f),e&mn&&(n[8]=null==n[8]?t[8]:Hl(n[8],t[8])),null==n[9]&&(n[9]=t[9]),n[0]=t[0],n[1]=u,n}function Zi(n){var t=[];if(null!=n)for(var r in ll(n))t.push(r);return t}function Ki(n){return xl.call(n)}function Vi(t,r,e){return r=Gl(r===X?t.length-1:r,0),function(){for(var u=arguments,i=-1,o=Gl(u.length-r,0),f=il(o);++i<o;)f[i]=u[r+i];
-i=-1;for(var c=il(r+1);++i<r;)c[i]=u[i];return c[r]=e(f),n(t,this,c)}}function Gi(n,t){return t.length<2?n:_e(n,au(t,0,-1))}function Hi(n,t){for(var r=n.length,e=Hl(t.length,r),u=Tu(n);e--;){var i=t[e];n[e]=Ci(i,r)?u[i]:X}return n}function Ji(n,t){if(("constructor"!==t||"function"!=typeof n[t])&&"__proto__"!=t)return n[t]}function Yi(n,t,r){var e=t+"";return Ls(n,Wi(e,ro(Ii(e),r)))}function Qi(n){var t=0,r=0;return function(){var e=Jl(),u=In-(e-r);if(r=e,u>0){if(++t>=On)return arguments[0]}else t=0;
-return n.apply(X,arguments)}}function Xi(n,t){var r=-1,e=n.length,u=e-1;for(t=t===X?e:t;++r<t;){var i=tu(r,u),o=n[i];n[i]=n[r],n[r]=o}return n.length=t,n}function no(n){if("string"==typeof n||bc(n))return n;var t=n+"";return"0"==t&&1/n==-Sn?"-0":t}function to(n){if(null!=n){try{return dl.call(n)}catch(n){}try{return n+""}catch(n){}}return""}function ro(n,t){return r($n,function(r){var e="_."+r[0];t&r[1]&&!o(n,e)&&n.push(e)}),n.sort()}function eo(n){if(n instanceof Ct)return n.clone();var t=new Y(n.__wrapped__,n.__chain__);
-return t.__actions__=Tu(n.__actions__),t.__index__=n.__index__,t.__values__=n.__values__,t}function uo(n,t,r){t=(r?Ui(n,t,r):t===X)?1:Gl(kc(t),0);var e=null==n?0:n.length;if(!e||t<1)return[];for(var u=0,i=0,o=il(Fl(e/t));u<e;)o[i++]=au(n,u,u+=t);return o}function io(n){for(var t=-1,r=null==n?0:n.length,e=0,u=[];++t<r;){var i=n[t];i&&(u[e++]=i)}return u}function oo(){var n=arguments.length;if(!n)return[];for(var t=il(n-1),r=arguments[0],e=n;e--;)t[e-1]=arguments[e];return a(bh(r)?Tu(r):[r],ee(t,1));
-}function fo(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),au(n,t<0?0:t,e)):[]}function co(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),t=e-t,au(n,0,t<0?0:t)):[]}function ao(n,t){return n&&n.length?bu(n,mi(t,3),!0,!0):[]}function lo(n,t){return n&&n.length?bu(n,mi(t,3),!0):[]}function so(n,t,r,e){var u=null==n?0:n.length;return u?(r&&"number"!=typeof r&&Ui(n,t,r)&&(r=0,e=u),ne(n,t,r,e)):[]}function ho(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=null==r?0:kc(r);
-return u<0&&(u=Gl(e+u,0)),g(n,mi(t,3),u)}function po(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=e-1;return r!==X&&(u=kc(r),u=r<0?Gl(e+u,0):Hl(u,e-1)),g(n,mi(t,3),u,!0)}function _o(n){return(null==n?0:n.length)?ee(n,1):[]}function vo(n){return(null==n?0:n.length)?ee(n,Sn):[]}function go(n,t){return(null==n?0:n.length)?(t=t===X?1:kc(t),ee(n,t)):[]}function yo(n){for(var t=-1,r=null==n?0:n.length,e={};++t<r;){var u=n[t];e[u[0]]=u[1]}return e}function bo(n){return n&&n.length?n[0]:X}function wo(n,t,r){
-var e=null==n?0:n.length;if(!e)return-1;var u=null==r?0:kc(r);return u<0&&(u=Gl(e+u,0)),y(n,t,u)}function mo(n){return(null==n?0:n.length)?au(n,0,-1):[]}function xo(n,t){return null==n?"":Kl.call(n,t)}function jo(n){var t=null==n?0:n.length;return t?n[t-1]:X}function Ao(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=e;return r!==X&&(u=kc(r),u=u<0?Gl(e+u,0):Hl(u,e-1)),t===t?K(n,t,u):g(n,b,u,!0)}function ko(n,t){return n&&n.length?Ge(n,kc(t)):X}function Oo(n,t){return n&&n.length&&t&&t.length?Xe(n,t):n;
-}function Io(n,t,r){return n&&n.length&&t&&t.length?Xe(n,t,mi(r,2)):n}function Ro(n,t,r){return n&&n.length&&t&&t.length?Xe(n,t,X,r):n}function zo(n,t){var r=[];if(!n||!n.length)return r;var e=-1,u=[],i=n.length;for(t=mi(t,3);++e<i;){var o=n[e];t(o,e,n)&&(r.push(o),u.push(e))}return nu(n,u),r}function Eo(n){return null==n?n:Xl.call(n)}function So(n,t,r){var e=null==n?0:n.length;return e?(r&&"number"!=typeof r&&Ui(n,t,r)?(t=0,r=e):(t=null==t?0:kc(t),r=r===X?e:kc(r)),au(n,t,r)):[]}function Wo(n,t){
-return su(n,t)}function Lo(n,t,r){return hu(n,t,mi(r,2))}function Co(n,t){var r=null==n?0:n.length;if(r){var e=su(n,t);if(e<r&&Gf(n[e],t))return e}return-1}function Uo(n,t){return su(n,t,!0)}function Bo(n,t,r){return hu(n,t,mi(r,2),!0)}function To(n,t){if(null==n?0:n.length){var r=su(n,t,!0)-1;if(Gf(n[r],t))return r}return-1}function $o(n){return n&&n.length?pu(n):[]}function Do(n,t){return n&&n.length?pu(n,mi(t,2)):[]}function Mo(n){var t=null==n?0:n.length;return t?au(n,1,t):[]}function Fo(n,t,r){
-return n&&n.length?(t=r||t===X?1:kc(t),au(n,0,t<0?0:t)):[]}function No(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),t=e-t,au(n,t<0?0:t,e)):[]}function Po(n,t){return n&&n.length?bu(n,mi(t,3),!1,!0):[]}function qo(n,t){return n&&n.length?bu(n,mi(t,3)):[]}function Zo(n){return n&&n.length?gu(n):[]}function Ko(n,t){return n&&n.length?gu(n,mi(t,2)):[]}function Vo(n,t){return t="function"==typeof t?t:X,n&&n.length?gu(n,X,t):[]}function Go(n){if(!n||!n.length)return[];var t=0;return n=i(n,function(n){
-if(Jf(n))return t=Gl(n.length,t),!0}),O(t,function(t){return c(n,m(t))})}function Ho(t,r){if(!t||!t.length)return[];var e=Go(t);return null==r?e:c(e,function(t){return n(r,X,t)})}function Jo(n,t){return xu(n||[],t||[],Sr)}function Yo(n,t){return xu(n||[],t||[],fu)}function Qo(n){var t=Z(n);return t.__chain__=!0,t}function Xo(n,t){return t(n),n}function nf(n,t){return t(n)}function tf(){return Qo(this)}function rf(){return new Y(this.value(),this.__chain__)}function ef(){this.__values__===X&&(this.__values__=jc(this.value()));
-var n=this.__index__>=this.__values__.length;return{done:n,value:n?X:this.__values__[this.__index__++]}}function uf(){return this}function of(n){for(var t,r=this;r instanceof J;){var e=eo(r);e.__index__=0,e.__values__=X,t?u.__wrapped__=e:t=e;var u=e;r=r.__wrapped__}return u.__wrapped__=n,t}function ff(){var n=this.__wrapped__;if(n instanceof Ct){var t=n;return this.__actions__.length&&(t=new Ct(this)),t=t.reverse(),t.__actions__.push({func:nf,args:[Eo],thisArg:X}),new Y(t,this.__chain__)}return this.thru(Eo);
-}function cf(){return wu(this.__wrapped__,this.__actions__)}function af(n,t,r){var e=bh(n)?u:Jr;return r&&Ui(n,t,r)&&(t=X),e(n,mi(t,3))}function lf(n,t){return(bh(n)?i:te)(n,mi(t,3))}function sf(n,t){return ee(yf(n,t),1)}function hf(n,t){return ee(yf(n,t),Sn)}function pf(n,t,r){return r=r===X?1:kc(r),ee(yf(n,t),r)}function _f(n,t){return(bh(n)?r:ys)(n,mi(t,3))}function vf(n,t){return(bh(n)?e:ds)(n,mi(t,3))}function gf(n,t,r,e){n=Hf(n)?n:ra(n),r=r&&!e?kc(r):0;var u=n.length;return r<0&&(r=Gl(u+r,0)),
-dc(n)?r<=u&&n.indexOf(t,r)>-1:!!u&&y(n,t,r)>-1}function yf(n,t){return(bh(n)?c:Pe)(n,mi(t,3))}function df(n,t,r,e){return null==n?[]:(bh(t)||(t=null==t?[]:[t]),r=e?X:r,bh(r)||(r=null==r?[]:[r]),He(n,t,r))}function bf(n,t,r){var e=bh(n)?l:j,u=arguments.length<3;return e(n,mi(t,4),r,u,ys)}function wf(n,t,r){var e=bh(n)?s:j,u=arguments.length<3;return e(n,mi(t,4),r,u,ds)}function mf(n,t){return(bh(n)?i:te)(n,Uf(mi(t,3)))}function xf(n){return(bh(n)?Ir:iu)(n)}function jf(n,t,r){return t=(r?Ui(n,t,r):t===X)?1:kc(t),
-(bh(n)?Rr:ou)(n,t)}function Af(n){return(bh(n)?zr:cu)(n)}function kf(n){if(null==n)return 0;if(Hf(n))return dc(n)?V(n):n.length;var t=zs(n);return t==Gn||t==tt?n.size:Me(n).length}function Of(n,t,r){var e=bh(n)?h:lu;return r&&Ui(n,t,r)&&(t=X),e(n,mi(t,3))}function If(n,t){if("function"!=typeof t)throw new pl(en);return n=kc(n),function(){if(--n<1)return t.apply(this,arguments)}}function Rf(n,t,r){return t=r?X:t,t=n&&null==t?n.length:t,ai(n,mn,X,X,X,X,t)}function zf(n,t){var r;if("function"!=typeof t)throw new pl(en);
-return n=kc(n),function(){return--n>0&&(r=t.apply(this,arguments)),n<=1&&(t=X),r}}function Ef(n,t,r){t=r?X:t;var e=ai(n,yn,X,X,X,X,X,t);return e.placeholder=Ef.placeholder,e}function Sf(n,t,r){t=r?X:t;var e=ai(n,dn,X,X,X,X,X,t);return e.placeholder=Sf.placeholder,e}function Wf(n,t,r){function e(t){var r=h,e=p;return h=p=X,d=t,v=n.apply(e,r)}function u(n){return d=n,g=Ws(f,t),b?e(n):v}function i(n){var r=n-y,e=n-d,u=t-r;return w?Hl(u,_-e):u}function o(n){var r=n-y,e=n-d;return y===X||r>=t||r<0||w&&e>=_;
-}function f(){var n=fh();return o(n)?c(n):(g=Ws(f,i(n)),X)}function c(n){return g=X,m&&h?e(n):(h=p=X,v)}function a(){g!==X&&As(g),d=0,h=y=p=g=X}function l(){return g===X?v:c(fh())}function s(){var n=fh(),r=o(n);if(h=arguments,p=this,y=n,r){if(g===X)return u(y);if(w)return As(g),g=Ws(f,t),e(y)}return g===X&&(g=Ws(f,t)),v}var h,p,_,v,g,y,d=0,b=!1,w=!1,m=!0;if("function"!=typeof n)throw new pl(en);return t=Ic(t)||0,fc(r)&&(b=!!r.leading,w="maxWait"in r,_=w?Gl(Ic(r.maxWait)||0,t):_,m="trailing"in r?!!r.trailing:m),
-s.cancel=a,s.flush=l,s}function Lf(n){return ai(n,jn)}function Cf(n,t){if("function"!=typeof n||null!=t&&"function"!=typeof t)throw new pl(en);var r=function(){var e=arguments,u=t?t.apply(this,e):e[0],i=r.cache;if(i.has(u))return i.get(u);var o=n.apply(this,e);return r.cache=i.set(u,o)||i,o};return r.cache=new(Cf.Cache||sr),r}function Uf(n){if("function"!=typeof n)throw new pl(en);return function(){var t=arguments;switch(t.length){case 0:return!n.call(this);case 1:return!n.call(this,t[0]);case 2:
-return!n.call(this,t[0],t[1]);case 3:return!n.call(this,t[0],t[1],t[2])}return!n.apply(this,t)}}function Bf(n){return zf(2,n)}function Tf(n,t){if("function"!=typeof n)throw new pl(en);return t=t===X?t:kc(t),uu(n,t)}function $f(t,r){if("function"!=typeof t)throw new pl(en);return r=null==r?0:Gl(kc(r),0),uu(function(e){var u=e[r],i=Ou(e,0,r);return u&&a(i,u),n(t,this,i)})}function Df(n,t,r){var e=!0,u=!0;if("function"!=typeof n)throw new pl(en);return fc(r)&&(e="leading"in r?!!r.leading:e,u="trailing"in r?!!r.trailing:u),
-Wf(n,t,{leading:e,maxWait:t,trailing:u})}function Mf(n){return Rf(n,1)}function Ff(n,t){return ph(Au(t),n)}function Nf(){if(!arguments.length)return[];var n=arguments[0];return bh(n)?n:[n]}function Pf(n){return Fr(n,sn)}function qf(n,t){return t="function"==typeof t?t:X,Fr(n,sn,t)}function Zf(n){return Fr(n,an|sn)}function Kf(n,t){return t="function"==typeof t?t:X,Fr(n,an|sn,t)}function Vf(n,t){return null==t||Pr(n,t,Pc(t))}function Gf(n,t){return n===t||n!==n&&t!==t}function Hf(n){return null!=n&&oc(n.length)&&!uc(n);
-}function Jf(n){return cc(n)&&Hf(n)}function Yf(n){return n===!0||n===!1||cc(n)&&we(n)==Nn}function Qf(n){return cc(n)&&1===n.nodeType&&!gc(n)}function Xf(n){if(null==n)return!0;if(Hf(n)&&(bh(n)||"string"==typeof n||"function"==typeof n.splice||mh(n)||Oh(n)||dh(n)))return!n.length;var t=zs(n);if(t==Gn||t==tt)return!n.size;if(Mi(n))return!Me(n).length;for(var r in n)if(bl.call(n,r))return!1;return!0}function nc(n,t){return Se(n,t)}function tc(n,t,r){r="function"==typeof r?r:X;var e=r?r(n,t):X;return e===X?Se(n,t,X,r):!!e;
-}function rc(n){if(!cc(n))return!1;var t=we(n);return t==Zn||t==qn||"string"==typeof n.message&&"string"==typeof n.name&&!gc(n)}function ec(n){return"number"==typeof n&&Zl(n)}function uc(n){if(!fc(n))return!1;var t=we(n);return t==Kn||t==Vn||t==Fn||t==Xn}function ic(n){return"number"==typeof n&&n==kc(n)}function oc(n){return"number"==typeof n&&n>-1&&n%1==0&&n<=Wn}function fc(n){var t=typeof n;return null!=n&&("object"==t||"function"==t)}function cc(n){return null!=n&&"object"==typeof n}function ac(n,t){
-return n===t||Ce(n,t,ji(t))}function lc(n,t,r){return r="function"==typeof r?r:X,Ce(n,t,ji(t),r)}function sc(n){return vc(n)&&n!=+n}function hc(n){if(Es(n))throw new fl(rn);return Ue(n)}function pc(n){return null===n}function _c(n){return null==n}function vc(n){return"number"==typeof n||cc(n)&&we(n)==Hn}function gc(n){if(!cc(n)||we(n)!=Yn)return!1;var t=El(n);if(null===t)return!0;var r=bl.call(t,"constructor")&&t.constructor;return"function"==typeof r&&r instanceof r&&dl.call(r)==jl}function yc(n){
-return ic(n)&&n>=-Wn&&n<=Wn}function dc(n){return"string"==typeof n||!bh(n)&&cc(n)&&we(n)==rt}function bc(n){return"symbol"==typeof n||cc(n)&&we(n)==et}function wc(n){return n===X}function mc(n){return cc(n)&&zs(n)==it}function xc(n){return cc(n)&&we(n)==ot}function jc(n){if(!n)return[];if(Hf(n))return dc(n)?G(n):Tu(n);if(Ul&&n[Ul])return D(n[Ul]());var t=zs(n);return(t==Gn?M:t==tt?P:ra)(n)}function Ac(n){if(!n)return 0===n?n:0;if(n=Ic(n),n===Sn||n===-Sn){return(n<0?-1:1)*Ln}return n===n?n:0}function kc(n){
-var t=Ac(n),r=t%1;return t===t?r?t-r:t:0}function Oc(n){return n?Mr(kc(n),0,Un):0}function Ic(n){if("number"==typeof n)return n;if(bc(n))return Cn;if(fc(n)){var t="function"==typeof n.valueOf?n.valueOf():n;n=fc(t)?t+"":t}if("string"!=typeof n)return 0===n?n:+n;n=R(n);var r=qt.test(n);return r||Kt.test(n)?Xr(n.slice(2),r?2:8):Pt.test(n)?Cn:+n}function Rc(n){return $u(n,qc(n))}function zc(n){return n?Mr(kc(n),-Wn,Wn):0===n?n:0}function Ec(n){return null==n?"":vu(n)}function Sc(n,t){var r=gs(n);return null==t?r:Cr(r,t);
-}function Wc(n,t){return v(n,mi(t,3),ue)}function Lc(n,t){return v(n,mi(t,3),oe)}function Cc(n,t){return null==n?n:bs(n,mi(t,3),qc)}function Uc(n,t){return null==n?n:ws(n,mi(t,3),qc)}function Bc(n,t){return n&&ue(n,mi(t,3))}function Tc(n,t){return n&&oe(n,mi(t,3))}function $c(n){return null==n?[]:fe(n,Pc(n))}function Dc(n){return null==n?[]:fe(n,qc(n))}function Mc(n,t,r){var e=null==n?X:_e(n,t);return e===X?r:e}function Fc(n,t){return null!=n&&Ri(n,t,xe)}function Nc(n,t){return null!=n&&Ri(n,t,je);
-}function Pc(n){return Hf(n)?Or(n):Me(n)}function qc(n){return Hf(n)?Or(n,!0):Fe(n)}function Zc(n,t){var r={};return t=mi(t,3),ue(n,function(n,e,u){Br(r,t(n,e,u),n)}),r}function Kc(n,t){var r={};return t=mi(t,3),ue(n,function(n,e,u){Br(r,e,t(n,e,u))}),r}function Vc(n,t){return Gc(n,Uf(mi(t)))}function Gc(n,t){if(null==n)return{};var r=c(di(n),function(n){return[n]});return t=mi(t),Ye(n,r,function(n,r){return t(n,r[0])})}function Hc(n,t,r){t=ku(t,n);var e=-1,u=t.length;for(u||(u=1,n=X);++e<u;){var i=null==n?X:n[no(t[e])];
-i===X&&(e=u,i=r),n=uc(i)?i.call(n):i}return n}function Jc(n,t,r){return null==n?n:fu(n,t,r)}function Yc(n,t,r,e){return e="function"==typeof e?e:X,null==n?n:fu(n,t,r,e)}function Qc(n,t,e){var u=bh(n),i=u||mh(n)||Oh(n);if(t=mi(t,4),null==e){var o=n&&n.constructor;e=i?u?new o:[]:fc(n)&&uc(o)?gs(El(n)):{}}return(i?r:ue)(n,function(n,r,u){return t(e,n,r,u)}),e}function Xc(n,t){return null==n||yu(n,t)}function na(n,t,r){return null==n?n:du(n,t,Au(r))}function ta(n,t,r,e){return e="function"==typeof e?e:X,
-null==n?n:du(n,t,Au(r),e)}function ra(n){return null==n?[]:E(n,Pc(n))}function ea(n){return null==n?[]:E(n,qc(n))}function ua(n,t,r){return r===X&&(r=t,t=X),r!==X&&(r=Ic(r),r=r===r?r:0),t!==X&&(t=Ic(t),t=t===t?t:0),Mr(Ic(n),t,r)}function ia(n,t,r){return t=Ac(t),r===X?(r=t,t=0):r=Ac(r),n=Ic(n),Ae(n,t,r)}function oa(n,t,r){if(r&&"boolean"!=typeof r&&Ui(n,t,r)&&(t=r=X),r===X&&("boolean"==typeof t?(r=t,t=X):"boolean"==typeof n&&(r=n,n=X)),n===X&&t===X?(n=0,t=1):(n=Ac(n),t===X?(t=n,n=0):t=Ac(t)),n>t){
-var e=n;n=t,t=e}if(r||n%1||t%1){var u=Ql();return Hl(n+u*(t-n+Qr("1e-"+((u+"").length-1))),t)}return tu(n,t)}function fa(n){return Qh(Ec(n).toLowerCase())}function ca(n){return n=Ec(n),n&&n.replace(Gt,ve).replace(Dr,"")}function aa(n,t,r){n=Ec(n),t=vu(t);var e=n.length;r=r===X?e:Mr(kc(r),0,e);var u=r;return r-=t.length,r>=0&&n.slice(r,u)==t}function la(n){return n=Ec(n),n&&At.test(n)?n.replace(xt,ge):n}function sa(n){return n=Ec(n),n&&Wt.test(n)?n.replace(St,"\\$&"):n}function ha(n,t,r){n=Ec(n),t=kc(t);
-var e=t?V(n):0;if(!t||e>=t)return n;var u=(t-e)/2;return ri(Nl(u),r)+n+ri(Fl(u),r)}function pa(n,t,r){n=Ec(n),t=kc(t);var e=t?V(n):0;return t&&e<t?n+ri(t-e,r):n}function _a(n,t,r){n=Ec(n),t=kc(t);var e=t?V(n):0;return t&&e<t?ri(t-e,r)+n:n}function va(n,t,r){return r||null==t?t=0:t&&(t=+t),Yl(Ec(n).replace(Lt,""),t||0)}function ga(n,t,r){return t=(r?Ui(n,t,r):t===X)?1:kc(t),eu(Ec(n),t)}function ya(){var n=arguments,t=Ec(n[0]);return n.length<3?t:t.replace(n[1],n[2])}function da(n,t,r){return r&&"number"!=typeof r&&Ui(n,t,r)&&(t=r=X),
-(r=r===X?Un:r>>>0)?(n=Ec(n),n&&("string"==typeof t||null!=t&&!Ah(t))&&(t=vu(t),!t&&T(n))?Ou(G(n),0,r):n.split(t,r)):[]}function ba(n,t,r){return n=Ec(n),r=null==r?0:Mr(kc(r),0,n.length),t=vu(t),n.slice(r,r+t.length)==t}function wa(n,t,r){var e=Z.templateSettings;r&&Ui(n,t,r)&&(t=X),n=Ec(n),t=Sh({},t,e,li);var u,i,o=Sh({},t.imports,e.imports,li),f=Pc(o),c=E(o,f),a=0,l=t.interpolate||Ht,s="__p += '",h=sl((t.escape||Ht).source+"|"+l.source+"|"+(l===It?Ft:Ht).source+"|"+(t.evaluate||Ht).source+"|$","g"),p="//# sourceURL="+(bl.call(t,"sourceURL")?(t.sourceURL+"").replace(/\s/g," "):"lodash.templateSources["+ ++Zr+"]")+"\n";
+t&&l.push(p),a.push(h)}else u(l,p,r)||(l!==a&&l.push(p),a.push(h))}return a}function yu(n,t){t=ku(t,n);var r=-1,e=t.length;if(!e)return!0;for(var u=null==n||"object"!=typeof n&&"function"!=typeof n;++r<e;){var i=t[r];if("string"==typeof i){if("__proto__"===i&&!bl.call(n,"__proto__"))return!1;if("constructor"===i&&r+1<e&&"string"==typeof t[r+1]&&"prototype"===t[r+1]){if(u&&0===r)continue;return!1}}}var o=Gi(n,t);return null==o||delete o[no(jo(t))]}function du(n,t,r,e){return fu(n,t,r(_e(n,t)),e)}function bu(n,t,r,e){
+for(var u=n.length,i=e?u:-1;(e?i--:++i<u)&&t(n[i],i,n););return r?au(n,e?0:i,e?i+1:u):au(n,e?i+1:0,e?u:i)}function wu(n,t){var r=n;return r instanceof Ct&&(r=r.value()),l(t,function(n,t){return t.func.apply(t.thisArg,a([n],t.args))},r)}function mu(n,t,r){var e=n.length;if(e<2)return e?gu(n[0]):[];for(var u=-1,i=il(e);++u<e;)for(var o=n[u],f=-1;++f<e;)f!=u&&(i[u]=Hr(i[u]||o,n[f],t,r));return gu(ee(i,1),t,r)}function xu(n,t,r){for(var e=-1,u=n.length,i=t.length,o={};++e<u;){r(o,n[e],e<i?t[e]:X)}return o;
+}function ju(n){return Jf(n)?n:[]}function Au(n){return"function"==typeof n?n:La}function ku(n,t){return bh(n)?n:Bi(n,t)?[n]:Cs(Ec(n))}function Ou(n,t,r){var e=n.length;return r=r===X?e:r,!t&&r>=e?n:au(n,t,r)}function Iu(n,t){if(t)return n.slice();var r=n.length,e=zl?zl(r):new n.constructor(r);return n.copy(e),e}function Ru(n){var t=new n.constructor(n.byteLength);return new Rl(t).set(new Rl(n)),t}function zu(n,t){return new n.constructor(t?Ru(n.buffer):n.buffer,n.byteOffset,n.byteLength)}function Eu(n){
+var t=new n.constructor(n.source,Nt.exec(n));return t.lastIndex=n.lastIndex,t}function Su(n){return _s?ll(_s.call(n)):{}}function Wu(n,t){return new n.constructor(t?Ru(n.buffer):n.buffer,n.byteOffset,n.length)}function Lu(n,t){if(n!==t){var r=n!==X,e=null===n,u=n===n,i=bc(n),o=t!==X,f=null===t,c=t===t,a=bc(t);if(!f&&!a&&!i&&n>t||i&&o&&c&&!f&&!a||e&&o&&c||!r&&c||!u)return 1;if(!e&&!i&&!a&&n<t||a&&r&&u&&!e&&!i||f&&r&&u||!o&&u||!c)return-1}return 0}function Cu(n,t,r){for(var e=-1,u=n.criteria,i=t.criteria,o=u.length,f=r.length;++e<o;){
+var c=Lu(u[e],i[e]);if(c){if(e>=f)return c;return c*("desc"==r[e]?-1:1)}}return n.index-t.index}function Uu(n,t,r,e){for(var u=-1,i=n.length,o=r.length,f=-1,c=t.length,a=Gl(i-o,0),l=il(c+a),s=!e;++f<c;)l[f]=t[f];for(;++u<o;)(s||u<i)&&(l[r[u]]=n[u]);for(;a--;)l[f++]=n[u++];return l}function Bu(n,t,r,e){for(var u=-1,i=n.length,o=-1,f=r.length,c=-1,a=t.length,l=Gl(i-f,0),s=il(l+a),h=!e;++u<l;)s[u]=n[u];for(var p=u;++c<a;)s[p+c]=t[c];for(;++o<f;)(h||u<i)&&(s[p+r[o]]=n[u++]);return s}function Tu(n,t){
+var r=-1,e=n.length;for(t||(t=il(e));++r<e;)t[r]=n[r];return t}function $u(n,t,r,e){var u=!r;r||(r={});for(var i=-1,o=t.length;++i<o;){var f=t[i],c=e?e(r[f],n[f],f,r,n):X;c===X&&(c=n[f]),u?Br(r,f,c):Sr(r,f,c)}return r}function Du(n,t){return $u(n,Is(n),t)}function Mu(n,t){return $u(n,Rs(n),t)}function Fu(n,r){return function(e,u){var i=bh(e)?t:Lr,o=r?r():{};return i(e,n,mi(u,2),o)}}function Nu(n){return uu(function(t,r){var e=-1,u=r.length,i=u>1?r[u-1]:X,o=u>2?r[2]:X;for(i=n.length>3&&"function"==typeof i?(u--,
+i):X,o&&Ui(r[0],r[1],o)&&(i=u<3?X:i,u=1),t=ll(t);++e<u;){var f=r[e];f&&n(t,f,e,i)}return t})}function Pu(n,t){return function(r,e){if(null==r)return r;if(!Hf(r))return n(r,e);for(var u=r.length,i=t?u:-1,o=ll(r);(t?i--:++i<u)&&e(o[i],i,o)!==!1;);return r}}function qu(n){return function(t,r,e){for(var u=-1,i=ll(t),o=e(t),f=o.length;f--;){var c=o[n?f:++u];if(r(i[c],c,i)===!1)break}return t}}function Zu(n,t,r){function e(){return(this&&this!==re&&this instanceof e?i:n).apply(u?r:this,arguments)}var u=t&_n,i=Gu(n);
+return e}function Ku(n){return function(t){t=Ec(t);var r=T(t)?G(t):X,e=r?r[0]:t.charAt(0),u=r?Ou(r,1).join(""):t.slice(1);return e[n]()+u}}function Vu(n){return function(t){return l(Ra(ca(t).replace($r,"")),n,"")}}function Gu(n){return function(){var t=arguments;switch(t.length){case 0:return new n;case 1:return new n(t[0]);case 2:return new n(t[0],t[1]);case 3:return new n(t[0],t[1],t[2]);case 4:return new n(t[0],t[1],t[2],t[3]);case 5:return new n(t[0],t[1],t[2],t[3],t[4]);case 6:return new n(t[0],t[1],t[2],t[3],t[4],t[5]);
+case 7:return new n(t[0],t[1],t[2],t[3],t[4],t[5],t[6])}var r=gs(n.prototype),e=n.apply(r,t);return fc(e)?e:r}}function Hu(t,r,e){function u(){for(var o=arguments.length,f=il(o),c=o,a=wi(u);c--;)f[c]=arguments[c];var l=o<3&&f[0]!==a&&f[o-1]!==a?[]:N(f,a);return o-=l.length,o<e?oi(t,r,Qu,u.placeholder,X,f,l,X,X,e-o):n(this&&this!==re&&this instanceof u?i:t,this,f)}var i=Gu(t);return u}function Ju(n){return function(t,r,e){var u=ll(t);if(!Hf(t)){var i=mi(r,3);t=Pc(t),r=function(n){return i(u[n],n,u);
+}}var o=n(t,r,e);return o>-1?u[i?t[o]:o]:X}}function Yu(n){return gi(function(t){var r=t.length,e=r,u=Y.prototype.thru;for(n&&t.reverse();e--;){var i=t[e];if("function"!=typeof i)throw new pl(en);if(u&&!o&&"wrapper"==bi(i))var o=new Y([],!0)}for(e=o?e:r;++e<r;){i=t[e];var f=bi(i),c="wrapper"==f?Os(i):X;o=c&&$i(c[0])&&c[1]==(mn|yn|bn|xn)&&!c[4].length&&1==c[9]?o[bi(c[0])].apply(o,c[3]):1==i.length&&$i(i)?o[f]():o.thru(i)}return function(){var n=arguments,e=n[0];if(o&&1==n.length&&bh(e))return o.plant(e).value();
+for(var u=0,i=r?t[u].apply(this,n):e;++u<r;)i=t[u].call(this,i);return i}})}function Qu(n,t,r,e,u,i,o,f,c,a){function l(){for(var y=arguments.length,d=il(y),b=y;b--;)d[b]=arguments[b];if(_)var w=wi(l),m=C(d,w);if(e&&(d=Uu(d,e,u,_)),i&&(d=Bu(d,i,o,_)),y-=m,_&&y<a){return oi(n,t,Qu,l.placeholder,r,d,N(d,w),f,c,a-y)}var x=h?r:this,j=p?x[n]:n;return y=d.length,f?d=Hi(d,f):v&&y>1&&d.reverse(),s&&c<y&&(d.length=c),this&&this!==re&&this instanceof l&&(j=g||Gu(j)),j.apply(x,d)}var s=t&mn,h=t&_n,p=t&vn,_=t&(yn|dn),v=t&jn,g=p?X:Gu(n);
+return l}function Xu(n,t){return function(r,e){return Oe(r,n,t(e),{})}}function ni(n,t){return function(r,e){var u;if(r===X&&e===X)return t;if(r!==X&&(u=r),e!==X){if(u===X)return e;"string"==typeof r||"string"==typeof e?(r=vu(r),e=vu(e)):(r=_u(r),e=_u(e)),u=n(r,e)}return u}}function ti(t){return gi(function(r){return r=c(r,z(mi())),uu(function(e){var u=this;return t(r,function(t){return n(t,u,e)})})})}function ri(n,t){t=t===X?" ":vu(t);var r=t.length;if(r<2)return r?eu(t,n):t;var e=eu(t,Fl(n/V(t)));
+return T(t)?Ou(G(e),0,n).join(""):e.slice(0,n)}function ei(t,r,e,u){function i(){for(var r=-1,c=arguments.length,a=-1,l=u.length,s=il(l+c),h=this&&this!==re&&this instanceof i?f:t;++a<l;)s[a]=u[a];for(;c--;)s[a++]=arguments[++r];return n(h,o?e:this,s)}var o=r&_n,f=Gu(t);return i}function ui(n){return function(t,r,e){return e&&"number"!=typeof e&&Ui(t,r,e)&&(r=e=X),t=Ac(t),r===X?(r=t,t=0):r=Ac(r),e=e===X?t<r?1:-1:Ac(e),ru(t,r,e,n)}}function ii(n){return function(t,r){return"string"==typeof t&&"string"==typeof r||(t=Ic(t),
+r=Ic(r)),n(t,r)}}function oi(n,t,r,e,u,i,o,f,c,a){var l=t&yn,s=l?o:X,h=l?X:o,p=l?i:X,_=l?X:i;t|=l?bn:wn,t&=~(l?wn:bn),t&gn||(t&=~(_n|vn));var v=[n,t,u,p,s,_,h,f,c,a],g=r.apply(X,v);return $i(n)&&Ss(g,v),g.placeholder=e,Yi(g,n,t)}function fi(n){var t=al[n];return function(n,r){if(n=Ic(n),r=null==r?0:Hl(kc(r),292),r&&Zl(n)){var e=(Ec(n)+"e").split("e");return e=(Ec(t(e[0]+"e"+(+e[1]+r)))+"e").split("e"),+(e[0]+"e"+(+e[1]-r))}return t(n)}}function ci(n){return function(t){var r=zs(t);return r==Gn?M(t):r==tt?q(t):I(t,n(t));
+}}function ai(n,t,r,e,u,i,o,f){var c=t&vn;if(!c&&"function"!=typeof n)throw new pl(en);var a=e?e.length:0;if(a||(t&=~(bn|wn),e=u=X),o=o===X?o:Gl(kc(o),0),f=f===X?f:kc(f),a-=u?u.length:0,t&wn){var l=e,s=u;e=u=X}var h=c?X:Os(n),p=[n,t,r,e,u,l,s,i,o,f];if(h&&qi(p,h),n=p[0],t=p[1],r=p[2],e=p[3],u=p[4],f=p[9]=p[9]===X?c?0:n.length:Gl(p[9]-a,0),!f&&t&(yn|dn)&&(t&=~(yn|dn)),t&&t!=_n)_=t==yn||t==dn?Hu(n,t,f):t!=bn&&t!=(_n|bn)||u.length?Qu.apply(X,p):ei(n,t,r,e);else var _=Zu(n,t,r);return Yi((h?ms:Ss)(_,p),n,t);
+}function li(n,t,r,e){return n===X||Gf(n,gl[r])&&!bl.call(e,r)?t:n}function si(n,t,r,e,u,i){return fc(n)&&fc(t)&&(i.set(t,n),Ke(n,t,X,si,i),i.delete(t)),n}function hi(n){return gc(n)?X:n}function pi(n,t,r,e,u,i){var o=r&hn,f=n.length,c=t.length;if(f!=c&&!(o&&c>f))return!1;var a=i.get(n),l=i.get(t);if(a&&l)return a==t&&l==n;var s=-1,p=!0,_=r&pn?new yr:X;for(i.set(n,t),i.set(t,n);++s<f;){var v=n[s],g=t[s];if(e)var y=o?e(g,v,s,t,n,i):e(v,g,s,n,t,i);if(y!==X){if(y)continue;p=!1;break}if(_){if(!h(t,function(n,t){
+if(!S(_,t)&&(v===n||u(v,n,r,e,i)))return _.push(t)})){p=!1;break}}else if(v!==g&&!u(v,g,r,e,i)){p=!1;break}}return i.delete(n),i.delete(t),p}function _i(n,t,r,e,u,i,o){switch(r){case ct:if(n.byteLength!=t.byteLength||n.byteOffset!=t.byteOffset)return!1;n=n.buffer,t=t.buffer;case ft:return!(n.byteLength!=t.byteLength||!i(new Rl(n),new Rl(t)));case Nn:case Pn:case Hn:return Gf(+n,+t);case Zn:return n.name==t.name&&n.message==t.message;case nt:case rt:return n==t+"";case Gn:var f=M;case tt:var c=e&hn;
+if(f||(f=P),n.size!=t.size&&!c)return!1;var a=o.get(n);if(a)return a==t;e|=pn,o.set(n,t);var l=pi(f(n),f(t),e,u,i,o);return o.delete(n),l;case et:if(_s)return _s.call(n)==_s.call(t)}return!1}function vi(n,t,r,e,u,i){var o=r&hn,f=yi(n),c=f.length;if(c!=yi(t).length&&!o)return!1;for(var a=c;a--;){var l=f[a];if(!(o?l in t:bl.call(t,l)))return!1}var s=i.get(n),h=i.get(t);if(s&&h)return s==t&&h==n;var p=!0;i.set(n,t),i.set(t,n);for(var _=o;++a<c;){l=f[a];var v=n[l],g=t[l];if(e)var y=o?e(g,v,l,t,n,i):e(v,g,l,n,t,i);
+if(!(y===X?v===g||u(v,g,r,e,i):y)){p=!1;break}_||(_="constructor"==l)}if(p&&!_){var d=n.constructor,b=t.constructor;d!=b&&"constructor"in n&&"constructor"in t&&!("function"==typeof d&&d instanceof d&&"function"==typeof b&&b instanceof b)&&(p=!1)}return i.delete(n),i.delete(t),p}function gi(n){return Ls(Vi(n,X,_o),n+"")}function yi(n){return de(n,Pc,Is)}function di(n){return de(n,qc,Rs)}function bi(n){for(var t=n.name+"",r=fs[t],e=bl.call(fs,t)?r.length:0;e--;){var u=r[e],i=u.func;if(null==i||i==n)return u.name;
+}return t}function wi(n){return(bl.call(Z,"placeholder")?Z:n).placeholder}function mi(){var n=Z.iteratee||Ca;return n=n===Ca?De:n,arguments.length?n(arguments[0],arguments[1]):n}function xi(n,t){var r=n.__data__;return Ti(t)?r["string"==typeof t?"string":"hash"]:r.map}function ji(n){for(var t=Pc(n),r=t.length;r--;){var e=t[r],u=n[e];t[r]=[e,u,Fi(u)]}return t}function Ai(n,t){var r=B(n,t);return Ue(r)?r:X}function ki(n){var t=bl.call(n,Bl),r=n[Bl];try{n[Bl]=X;var e=!0}catch(n){}var u=xl.call(n);return e&&(t?n[Bl]=r:delete n[Bl]),
+u}function Oi(n,t,r){for(var e=-1,u=r.length;++e<u;){var i=r[e],o=i.size;switch(i.type){case"drop":n+=o;break;case"dropRight":t-=o;break;case"take":t=Hl(t,n+o);break;case"takeRight":n=Gl(n,t-o)}}return{start:n,end:t}}function Ii(n){var t=n.match(Bt);return t?t[1].split(Tt):[]}function Ri(n,t,r){t=ku(t,n);for(var e=-1,u=t.length,i=!1;++e<u;){var o=no(t[e]);if(!(i=null!=n&&r(n,o)))break;n=n[o]}return i||++e!=u?i:(u=null==n?0:n.length,!!u&&oc(u)&&Ci(o,u)&&(bh(n)||dh(n)))}function zi(n){var t=n.length,r=new n.constructor(t);
+return t&&"string"==typeof n[0]&&bl.call(n,"index")&&(r.index=n.index,r.input=n.input),r}function Ei(n){return"function"!=typeof n.constructor||Mi(n)?{}:gs(El(n))}function Si(n,t,r){var e=n.constructor;switch(t){case ft:return Ru(n);case Nn:case Pn:return new e(+n);case ct:return zu(n,r);case at:case lt:case st:case ht:case pt:case _t:case vt:case gt:case yt:return Wu(n,r);case Gn:return new e;case Hn:case rt:return new e(n);case nt:return Eu(n);case tt:return new e;case et:return Su(n)}}function Wi(n,t){
+var r=t.length;if(!r)return n;var e=r-1;return t[e]=(r>1?"& ":"")+t[e],t=t.join(r>2?", ":" "),n.replace(Ut,"{\n/* [wrapped with "+t+"] */\n")}function Li(n){return bh(n)||dh(n)||!!(Cl&&n&&n[Cl])}function Ci(n,t){var r=typeof n;return t=null==t?Wn:t,!!t&&("number"==r||"symbol"!=r&&Vt.test(n))&&n>-1&&n%1==0&&n<t}function Ui(n,t,r){if(!fc(r))return!1;var e=typeof t;return!!("number"==e?Hf(r)&&Ci(t,r.length):"string"==e&&t in r)&&Gf(r[t],n)}function Bi(n,t){if(bh(n))return!1;var r=typeof n;return!("number"!=r&&"symbol"!=r&&"boolean"!=r&&null!=n&&!bc(n))||(zt.test(n)||!Rt.test(n)||null!=t&&n in ll(t));
+}function Ti(n){var t=typeof n;return"string"==t||"number"==t||"symbol"==t||"boolean"==t?"__proto__"!==n:null===n}function $i(n){var t=bi(n),r=Z[t];if("function"!=typeof r||!(t in Ct.prototype))return!1;if(n===r)return!0;var e=Os(r);return!!e&&n===e[0]}function Di(n){return!!ml&&ml in n}function Mi(n){var t=n&&n.constructor;return n===("function"==typeof t&&t.prototype||gl)}function Fi(n){return n===n&&!fc(n)}function Ni(n,t){return function(r){return null!=r&&(r[n]===t&&(t!==X||n in ll(r)))}}function Pi(n){
+var t=Cf(n,function(n){return r.size===fn&&r.clear(),n}),r=t.cache;return t}function qi(n,t){var r=n[1],e=t[1],u=r|e,i=u<(_n|vn|mn),o=e==mn&&r==yn||e==mn&&r==xn&&n[7].length<=t[8]||e==(mn|xn)&&t[7].length<=t[8]&&r==yn;if(!i&&!o)return n;e&_n&&(n[2]=t[2],u|=r&_n?0:gn);var f=t[3];if(f){var c=n[3];n[3]=c?Uu(c,f,t[4]):f,n[4]=c?N(n[3],cn):t[4]}return f=t[5],f&&(c=n[5],n[5]=c?Bu(c,f,t[6]):f,n[6]=c?N(n[5],cn):t[6]),f=t[7],f&&(n[7]=f),e&mn&&(n[8]=null==n[8]?t[8]:Hl(n[8],t[8])),null==n[9]&&(n[9]=t[9]),n[0]=t[0],
+n[1]=u,n}function Zi(n){var t=[];if(null!=n)for(var r in ll(n))t.push(r);return t}function Ki(n){return xl.call(n)}function Vi(t,r,e){return r=Gl(r===X?t.length-1:r,0),function(){for(var u=arguments,i=-1,o=Gl(u.length-r,0),f=il(o);++i<o;)f[i]=u[r+i];i=-1;for(var c=il(r+1);++i<r;)c[i]=u[i];return c[r]=e(f),n(t,this,c)}}function Gi(n,t){return t.length<2?n:_e(n,au(t,0,-1))}function Hi(n,t){for(var r=n.length,e=Hl(t.length,r),u=Tu(n);e--;){var i=t[e];n[e]=Ci(i,r)?u[i]:X}return n}function Ji(n,t){if(("constructor"!==t||"function"!=typeof n[t])&&"__proto__"!=t)return n[t];
+}function Yi(n,t,r){var e=t+"";return Ls(n,Wi(e,ro(Ii(e),r)))}function Qi(n){var t=0,r=0;return function(){var e=Jl(),u=In-(e-r);if(r=e,u>0){if(++t>=On)return arguments[0]}else t=0;return n.apply(X,arguments)}}function Xi(n,t){var r=-1,e=n.length,u=e-1;for(t=t===X?e:t;++r<t;){var i=tu(r,u),o=n[i];n[i]=n[r],n[r]=o}return n.length=t,n}function no(n){if("string"==typeof n||bc(n))return n;var t=n+"";return"0"==t&&1/n==-Sn?"-0":t}function to(n){if(null!=n){try{return dl.call(n)}catch(n){}try{return n+"";
+}catch(n){}}return""}function ro(n,t){return r($n,function(r){var e="_."+r[0];t&r[1]&&!o(n,e)&&n.push(e)}),n.sort()}function eo(n){if(n instanceof Ct)return n.clone();var t=new Y(n.__wrapped__,n.__chain__);return t.__actions__=Tu(n.__actions__),t.__index__=n.__index__,t.__values__=n.__values__,t}function uo(n,t,r){t=(r?Ui(n,t,r):t===X)?1:Gl(kc(t),0);var e=null==n?0:n.length;if(!e||t<1)return[];for(var u=0,i=0,o=il(Fl(e/t));u<e;)o[i++]=au(n,u,u+=t);return o}function io(n){for(var t=-1,r=null==n?0:n.length,e=0,u=[];++t<r;){
+var i=n[t];i&&(u[e++]=i)}return u}function oo(){var n=arguments.length;if(!n)return[];for(var t=il(n-1),r=arguments[0],e=n;e--;)t[e-1]=arguments[e];return a(bh(r)?Tu(r):[r],ee(t,1))}function fo(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),au(n,t<0?0:t,e)):[]}function co(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),t=e-t,au(n,0,t<0?0:t)):[]}function ao(n,t){return n&&n.length?bu(n,mi(t,3),!0,!0):[]}function lo(n,t){return n&&n.length?bu(n,mi(t,3),!0):[]}function so(n,t,r,e){
+var u=null==n?0:n.length;return u?(r&&"number"!=typeof r&&Ui(n,t,r)&&(r=0,e=u),ne(n,t,r,e)):[]}function ho(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=null==r?0:kc(r);return u<0&&(u=Gl(e+u,0)),g(n,mi(t,3),u)}function po(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=e-1;return r!==X&&(u=kc(r),u=r<0?Gl(e+u,0):Hl(u,e-1)),g(n,mi(t,3),u,!0)}function _o(n){return(null==n?0:n.length)?ee(n,1):[]}function vo(n){return(null==n?0:n.length)?ee(n,Sn):[]}function go(n,t){return(null==n?0:n.length)?(t=t===X?1:kc(t),
+ee(n,t)):[]}function yo(n){for(var t=-1,r=null==n?0:n.length,e={};++t<r;){var u=n[t];e[u[0]]=u[1]}return e}function bo(n){return n&&n.length?n[0]:X}function wo(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=null==r?0:kc(r);return u<0&&(u=Gl(e+u,0)),y(n,t,u)}function mo(n){return(null==n?0:n.length)?au(n,0,-1):[]}function xo(n,t){return null==n?"":Kl.call(n,t)}function jo(n){var t=null==n?0:n.length;return t?n[t-1]:X}function Ao(n,t,r){var e=null==n?0:n.length;if(!e)return-1;var u=e;return r!==X&&(u=kc(r),
+u=u<0?Gl(e+u,0):Hl(u,e-1)),t===t?K(n,t,u):g(n,b,u,!0)}function ko(n,t){return n&&n.length?Ge(n,kc(t)):X}function Oo(n,t){return n&&n.length&&t&&t.length?Xe(n,t):n}function Io(n,t,r){return n&&n.length&&t&&t.length?Xe(n,t,mi(r,2)):n}function Ro(n,t,r){return n&&n.length&&t&&t.length?Xe(n,t,X,r):n}function zo(n,t){var r=[];if(!n||!n.length)return r;var e=-1,u=[],i=n.length;for(t=mi(t,3);++e<i;){var o=n[e];t(o,e,n)&&(r.push(o),u.push(e))}return nu(n,u),r}function Eo(n){return null==n?n:Xl.call(n)}function So(n,t,r){
+var e=null==n?0:n.length;return e?(r&&"number"!=typeof r&&Ui(n,t,r)?(t=0,r=e):(t=null==t?0:kc(t),r=r===X?e:kc(r)),au(n,t,r)):[]}function Wo(n,t){return su(n,t)}function Lo(n,t,r){return hu(n,t,mi(r,2))}function Co(n,t){var r=null==n?0:n.length;if(r){var e=su(n,t);if(e<r&&Gf(n[e],t))return e}return-1}function Uo(n,t){return su(n,t,!0)}function Bo(n,t,r){return hu(n,t,mi(r,2),!0)}function To(n,t){if(null==n?0:n.length){var r=su(n,t,!0)-1;if(Gf(n[r],t))return r}return-1}function $o(n){return n&&n.length?pu(n):[];
+}function Do(n,t){return n&&n.length?pu(n,mi(t,2)):[]}function Mo(n){var t=null==n?0:n.length;return t?au(n,1,t):[]}function Fo(n,t,r){return n&&n.length?(t=r||t===X?1:kc(t),au(n,0,t<0?0:t)):[]}function No(n,t,r){var e=null==n?0:n.length;return e?(t=r||t===X?1:kc(t),t=e-t,au(n,t<0?0:t,e)):[]}function Po(n,t){return n&&n.length?bu(n,mi(t,3),!1,!0):[]}function qo(n,t){return n&&n.length?bu(n,mi(t,3)):[]}function Zo(n){return n&&n.length?gu(n):[]}function Ko(n,t){return n&&n.length?gu(n,mi(t,2)):[]}
+function Vo(n,t){return t="function"==typeof t?t:X,n&&n.length?gu(n,X,t):[]}function Go(n){if(!n||!n.length)return[];var t=0;return n=i(n,function(n){if(Jf(n))return t=Gl(n.length,t),!0}),O(t,function(t){return c(n,m(t))})}function Ho(t,r){if(!t||!t.length)return[];var e=Go(t);return null==r?e:c(e,function(t){return n(r,X,t)})}function Jo(n,t){return xu(n||[],t||[],Sr)}function Yo(n,t){return xu(n||[],t||[],fu)}function Qo(n){var t=Z(n);return t.__chain__=!0,t}function Xo(n,t){return t(n),n}function nf(n,t){
+return t(n)}function tf(){return Qo(this)}function rf(){return new Y(this.value(),this.__chain__)}function ef(){this.__values__===X&&(this.__values__=jc(this.value()));var n=this.__index__>=this.__values__.length;return{done:n,value:n?X:this.__values__[this.__index__++]}}function uf(){return this}function of(n){for(var t,r=this;r instanceof J;){var e=eo(r);e.__index__=0,e.__values__=X,t?u.__wrapped__=e:t=e;var u=e;r=r.__wrapped__}return u.__wrapped__=n,t}function ff(){var n=this.__wrapped__;if(n instanceof Ct){
+var t=n;return this.__actions__.length&&(t=new Ct(this)),t=t.reverse(),t.__actions__.push({func:nf,args:[Eo],thisArg:X}),new Y(t,this.__chain__)}return this.thru(Eo)}function cf(){return wu(this.__wrapped__,this.__actions__)}function af(n,t,r){var e=bh(n)?u:Jr;return r&&Ui(n,t,r)&&(t=X),e(n,mi(t,3))}function lf(n,t){return(bh(n)?i:te)(n,mi(t,3))}function sf(n,t){return ee(yf(n,t),1)}function hf(n,t){return ee(yf(n,t),Sn)}function pf(n,t,r){return r=r===X?1:kc(r),ee(yf(n,t),r)}function _f(n,t){return(bh(n)?r:ys)(n,mi(t,3));
+}function vf(n,t){return(bh(n)?e:ds)(n,mi(t,3))}function gf(n,t,r,e){n=Hf(n)?n:ra(n),r=r&&!e?kc(r):0;var u=n.length;return r<0&&(r=Gl(u+r,0)),dc(n)?r<=u&&n.indexOf(t,r)>-1:!!u&&y(n,t,r)>-1}function yf(n,t){return(bh(n)?c:Pe)(n,mi(t,3))}function df(n,t,r,e){return null==n?[]:(bh(t)||(t=null==t?[]:[t]),r=e?X:r,bh(r)||(r=null==r?[]:[r]),He(n,t,r))}function bf(n,t,r){var e=bh(n)?l:j,u=arguments.length<3;return e(n,mi(t,4),r,u,ys)}function wf(n,t,r){var e=bh(n)?s:j,u=arguments.length<3;return e(n,mi(t,4),r,u,ds);
+}function mf(n,t){return(bh(n)?i:te)(n,Uf(mi(t,3)))}function xf(n){return(bh(n)?Ir:iu)(n)}function jf(n,t,r){return t=(r?Ui(n,t,r):t===X)?1:kc(t),(bh(n)?Rr:ou)(n,t)}function Af(n){return(bh(n)?zr:cu)(n)}function kf(n){if(null==n)return 0;if(Hf(n))return dc(n)?V(n):n.length;var t=zs(n);return t==Gn||t==tt?n.size:Me(n).length}function Of(n,t,r){var e=bh(n)?h:lu;return r&&Ui(n,t,r)&&(t=X),e(n,mi(t,3))}function If(n,t){if("function"!=typeof t)throw new pl(en);return n=kc(n),function(){if(--n<1)return t.apply(this,arguments);
+}}function Rf(n,t,r){return t=r?X:t,t=n&&null==t?n.length:t,ai(n,mn,X,X,X,X,t)}function zf(n,t){var r;if("function"!=typeof t)throw new pl(en);return n=kc(n),function(){return--n>0&&(r=t.apply(this,arguments)),n<=1&&(t=X),r}}function Ef(n,t,r){t=r?X:t;var e=ai(n,yn,X,X,X,X,X,t);return e.placeholder=Ef.placeholder,e}function Sf(n,t,r){t=r?X:t;var e=ai(n,dn,X,X,X,X,X,t);return e.placeholder=Sf.placeholder,e}function Wf(n,t,r){function e(t){var r=h,e=p;return h=p=X,d=t,v=n.apply(e,r)}function u(n){return d=n,
+g=Ws(f,t),b?e(n):v}function i(n){var r=n-y,e=n-d,u=t-r;return w?Hl(u,_-e):u}function o(n){var r=n-y,e=n-d;return y===X||r>=t||r<0||w&&e>=_}function f(){var n=fh();return o(n)?c(n):(g=Ws(f,i(n)),X)}function c(n){return g=X,m&&h?e(n):(h=p=X,v)}function a(){g!==X&&As(g),d=0,h=y=p=g=X}function l(){return g===X?v:c(fh())}function s(){var n=fh(),r=o(n);if(h=arguments,p=this,y=n,r){if(g===X)return u(y);if(w)return As(g),g=Ws(f,t),e(y)}return g===X&&(g=Ws(f,t)),v}var h,p,_,v,g,y,d=0,b=!1,w=!1,m=!0;if("function"!=typeof n)throw new pl(en);
+return t=Ic(t)||0,fc(r)&&(b=!!r.leading,w="maxWait"in r,_=w?Gl(Ic(r.maxWait)||0,t):_,m="trailing"in r?!!r.trailing:m),s.cancel=a,s.flush=l,s}function Lf(n){return ai(n,jn)}function Cf(n,t){if("function"!=typeof n||null!=t&&"function"!=typeof t)throw new pl(en);var r=function(){var e=arguments,u=t?t.apply(this,e):e[0],i=r.cache;if(i.has(u))return i.get(u);var o=n.apply(this,e);return r.cache=i.set(u,o)||i,o};return r.cache=new(Cf.Cache||sr),r}function Uf(n){if("function"!=typeof n)throw new pl(en);
+return function(){var t=arguments;switch(t.length){case 0:return!n.call(this);case 1:return!n.call(this,t[0]);case 2:return!n.call(this,t[0],t[1]);case 3:return!n.call(this,t[0],t[1],t[2])}return!n.apply(this,t)}}function Bf(n){return zf(2,n)}function Tf(n,t){if("function"!=typeof n)throw new pl(en);return t=t===X?t:kc(t),uu(n,t)}function $f(t,r){if("function"!=typeof t)throw new pl(en);return r=null==r?0:Gl(kc(r),0),uu(function(e){var u=e[r],i=Ou(e,0,r);return u&&a(i,u),n(t,this,i)})}function Df(n,t,r){
+var e=!0,u=!0;if("function"!=typeof n)throw new pl(en);return fc(r)&&(e="leading"in r?!!r.leading:e,u="trailing"in r?!!r.trailing:u),Wf(n,t,{leading:e,maxWait:t,trailing:u})}function Mf(n){return Rf(n,1)}function Ff(n,t){return ph(Au(t),n)}function Nf(){if(!arguments.length)return[];var n=arguments[0];return bh(n)?n:[n]}function Pf(n){return Fr(n,sn)}function qf(n,t){return t="function"==typeof t?t:X,Fr(n,sn,t)}function Zf(n){return Fr(n,an|sn)}function Kf(n,t){return t="function"==typeof t?t:X,Fr(n,an|sn,t);
+}function Vf(n,t){return null==t||Pr(n,t,Pc(t))}function Gf(n,t){return n===t||n!==n&&t!==t}function Hf(n){return null!=n&&oc(n.length)&&!uc(n)}function Jf(n){return cc(n)&&Hf(n)}function Yf(n){return n===!0||n===!1||cc(n)&&we(n)==Nn}function Qf(n){return cc(n)&&1===n.nodeType&&!gc(n)}function Xf(n){if(null==n)return!0;if(Hf(n)&&(bh(n)||"string"==typeof n||"function"==typeof n.splice||mh(n)||Oh(n)||dh(n)))return!n.length;var t=zs(n);if(t==Gn||t==tt)return!n.size;if(Mi(n))return!Me(n).length;for(var r in n)if(bl.call(n,r))return!1;
+return!0}function nc(n,t){return Se(n,t)}function tc(n,t,r){r="function"==typeof r?r:X;var e=r?r(n,t):X;return e===X?Se(n,t,X,r):!!e}function rc(n){if(!cc(n))return!1;var t=we(n);return t==Zn||t==qn||"string"==typeof n.message&&"string"==typeof n.name&&!gc(n)}function ec(n){return"number"==typeof n&&Zl(n)}function uc(n){if(!fc(n))return!1;var t=we(n);return t==Kn||t==Vn||t==Fn||t==Xn}function ic(n){return"number"==typeof n&&n==kc(n)}function oc(n){return"number"==typeof n&&n>-1&&n%1==0&&n<=Wn}function fc(n){
+var t=typeof n;return null!=n&&("object"==t||"function"==t)}function cc(n){return null!=n&&"object"==typeof n}function ac(n,t){return n===t||Ce(n,t,ji(t))}function lc(n,t,r){return r="function"==typeof r?r:X,Ce(n,t,ji(t),r)}function sc(n){return vc(n)&&n!=+n}function hc(n){if(Es(n))throw new fl(rn);return Ue(n)}function pc(n){return null===n}function _c(n){return null==n}function vc(n){return"number"==typeof n||cc(n)&&we(n)==Hn}function gc(n){if(!cc(n)||we(n)!=Yn)return!1;var t=El(n);if(null===t)return!0;
+var r=bl.call(t,"constructor")&&t.constructor;return"function"==typeof r&&r instanceof r&&dl.call(r)==jl}function yc(n){return ic(n)&&n>=-Wn&&n<=Wn}function dc(n){return"string"==typeof n||!bh(n)&&cc(n)&&we(n)==rt}function bc(n){return"symbol"==typeof n||cc(n)&&we(n)==et}function wc(n){return n===X}function mc(n){return cc(n)&&zs(n)==it}function xc(n){return cc(n)&&we(n)==ot}function jc(n){if(!n)return[];if(Hf(n))return dc(n)?G(n):Tu(n);if(Ul&&n[Ul])return D(n[Ul]());var t=zs(n);return(t==Gn?M:t==tt?P:ra)(n);
+}function Ac(n){if(!n)return 0===n?n:0;if(n=Ic(n),n===Sn||n===-Sn){return(n<0?-1:1)*Ln}return n===n?n:0}function kc(n){var t=Ac(n),r=t%1;return t===t?r?t-r:t:0}function Oc(n){return n?Mr(kc(n),0,Un):0}function Ic(n){if("number"==typeof n)return n;if(bc(n))return Cn;if(fc(n)){var t="function"==typeof n.valueOf?n.valueOf():n;n=fc(t)?t+"":t}if("string"!=typeof n)return 0===n?n:+n;n=R(n);var r=qt.test(n);return r||Kt.test(n)?Xr(n.slice(2),r?2:8):Pt.test(n)?Cn:+n}function Rc(n){return $u(n,qc(n))}function zc(n){
+return n?Mr(kc(n),-Wn,Wn):0===n?n:0}function Ec(n){return null==n?"":vu(n)}function Sc(n,t){var r=gs(n);return null==t?r:Cr(r,t)}function Wc(n,t){return v(n,mi(t,3),ue)}function Lc(n,t){return v(n,mi(t,3),oe)}function Cc(n,t){return null==n?n:bs(n,mi(t,3),qc)}function Uc(n,t){return null==n?n:ws(n,mi(t,3),qc)}function Bc(n,t){return n&&ue(n,mi(t,3))}function Tc(n,t){return n&&oe(n,mi(t,3))}function $c(n){return null==n?[]:fe(n,Pc(n))}function Dc(n){return null==n?[]:fe(n,qc(n))}function Mc(n,t,r){
+var e=null==n?X:_e(n,t);return e===X?r:e}function Fc(n,t){return null!=n&&Ri(n,t,xe)}function Nc(n,t){return null!=n&&Ri(n,t,je)}function Pc(n){return Hf(n)?Or(n):Me(n)}function qc(n){return Hf(n)?Or(n,!0):Fe(n)}function Zc(n,t){var r={};return t=mi(t,3),ue(n,function(n,e,u){Br(r,t(n,e,u),n)}),r}function Kc(n,t){var r={};return t=mi(t,3),ue(n,function(n,e,u){Br(r,e,t(n,e,u))}),r}function Vc(n,t){return Gc(n,Uf(mi(t)))}function Gc(n,t){if(null==n)return{};var r=c(di(n),function(n){return[n]});return t=mi(t),
+Ye(n,r,function(n,r){return t(n,r[0])})}function Hc(n,t,r){t=ku(t,n);var e=-1,u=t.length;for(u||(u=1,n=X);++e<u;){var i=null==n?X:n[no(t[e])];i===X&&(e=u,i=r),n=uc(i)?i.call(n):i}return n}function Jc(n,t,r){return null==n?n:fu(n,t,r)}function Yc(n,t,r,e){return e="function"==typeof e?e:X,null==n?n:fu(n,t,r,e)}function Qc(n,t,e){var u=bh(n),i=u||mh(n)||Oh(n);if(t=mi(t,4),null==e){var o=n&&n.constructor;e=i?u?new o:[]:fc(n)&&uc(o)?gs(El(n)):{}}return(i?r:ue)(n,function(n,r,u){return t(e,n,r,u)}),e}
+function Xc(n,t){return null==n||yu(n,t)}function na(n,t,r){return null==n?n:du(n,t,Au(r))}function ta(n,t,r,e){return e="function"==typeof e?e:X,null==n?n:du(n,t,Au(r),e)}function ra(n){return null==n?[]:E(n,Pc(n))}function ea(n){return null==n?[]:E(n,qc(n))}function ua(n,t,r){return r===X&&(r=t,t=X),r!==X&&(r=Ic(r),r=r===r?r:0),t!==X&&(t=Ic(t),t=t===t?t:0),Mr(Ic(n),t,r)}function ia(n,t,r){return t=Ac(t),r===X?(r=t,t=0):r=Ac(r),n=Ic(n),Ae(n,t,r)}function oa(n,t,r){if(r&&"boolean"!=typeof r&&Ui(n,t,r)&&(t=r=X),
+r===X&&("boolean"==typeof t?(r=t,t=X):"boolean"==typeof n&&(r=n,n=X)),n===X&&t===X?(n=0,t=1):(n=Ac(n),t===X?(t=n,n=0):t=Ac(t)),n>t){var e=n;n=t,t=e}if(r||n%1||t%1){var u=Ql();return Hl(n+u*(t-n+Qr("1e-"+((u+"").length-1))),t)}return tu(n,t)}function fa(n){return Qh(Ec(n).toLowerCase())}function ca(n){return n=Ec(n),n&&n.replace(Gt,ve).replace(Dr,"")}function aa(n,t,r){n=Ec(n),t=vu(t);var e=n.length;r=r===X?e:Mr(kc(r),0,e);var u=r;return r-=t.length,r>=0&&n.slice(r,u)==t}function la(n){return n=Ec(n),
+n&&At.test(n)?n.replace(xt,ge):n}function sa(n){return n=Ec(n),n&&Wt.test(n)?n.replace(St,"\\$&"):n}function ha(n,t,r){n=Ec(n),t=kc(t);var e=t?V(n):0;if(!t||e>=t)return n;var u=(t-e)/2;return ri(Nl(u),r)+n+ri(Fl(u),r)}function pa(n,t,r){n=Ec(n),t=kc(t);var e=t?V(n):0;return t&&e<t?n+ri(t-e,r):n}function _a(n,t,r){n=Ec(n),t=kc(t);var e=t?V(n):0;return t&&e<t?ri(t-e,r)+n:n}function va(n,t,r){return r||null==t?t=0:t&&(t=+t),Yl(Ec(n).replace(Lt,""),t||0)}function ga(n,t,r){return t=(r?Ui(n,t,r):t===X)?1:kc(t),
+eu(Ec(n),t)}function ya(){var n=arguments,t=Ec(n[0]);return n.length<3?t:t.replace(n[1],n[2])}function da(n,t,r){return r&&"number"!=typeof r&&Ui(n,t,r)&&(t=r=X),(r=r===X?Un:r>>>0)?(n=Ec(n),n&&("string"==typeof t||null!=t&&!Ah(t))&&(t=vu(t),!t&&T(n))?Ou(G(n),0,r):n.split(t,r)):[]}function ba(n,t,r){return n=Ec(n),r=null==r?0:Mr(kc(r),0,n.length),t=vu(t),n.slice(r,r+t.length)==t}function wa(n,t,r){var e=Z.templateSettings;r&&Ui(n,t,r)&&(t=X),n=Ec(n),t=Sh({},t,e,li);var u,i,o=Sh({},t.imports,e.imports,li),f=Pc(o),c=E(o,f),a=0,l=t.interpolate||Ht,s="__p += '",h=sl((t.escape||Ht).source+"|"+l.source+"|"+(l===It?Ft:Ht).source+"|"+(t.evaluate||Ht).source+"|$","g"),p="//# sourceURL="+(bl.call(t,"sourceURL")?(t.sourceURL+"").replace(/\s/g," "):"lodash.templateSources["+ ++Zr+"]")+"\n";
 n.replace(h,function(t,r,e,o,f,c){return e||(e=o),s+=n.slice(a,c).replace(Jt,U),r&&(u=!0,s+="' +\n__e("+r+") +\n'"),f&&(i=!0,s+="';\n"+f+";\n__p += '"),e&&(s+="' +\n((__t = ("+e+")) == null ? '' : __t) +\n'"),a=c+t.length,t}),s+="';\n";var _=bl.call(t,"variable")&&t.variable;if(_){if(Dt.test(_))throw new fl(un)}else s="with (obj) {\n"+s+"\n}\n";s=(i?s.replace(dt,""):s).replace(bt,"$1").replace(wt,"$1;"),s="function("+(_||"obj")+") {\n"+(_?"":"obj || (obj = {});\n")+"var __t, __p = ''"+(u?", __e = _.escape":"")+(i?", __j = Array.prototype.join;\nfunction print() { __p += __j.call(arguments, '') }\n":";\n")+s+"return __p\n}";
 var v=Xh(function(){return cl(f,p+"return "+s).apply(X,c)});if(v.source=s,rc(v))throw v;return v}function ma(n){return Ec(n).toLowerCase()}function xa(n){return Ec(n).toUpperCase()}function ja(n,t,r){if(n=Ec(n),n&&(r||t===X))return R(n);if(!n||!(t=vu(t)))return n;var e=G(n),u=G(t);return Ou(e,W(e,u),L(e,u)+1).join("")}function Aa(n,t,r){if(n=Ec(n),n&&(r||t===X))return n.slice(0,H(n)+1);if(!n||!(t=vu(t)))return n;var e=G(n);return Ou(e,0,L(e,G(t))+1).join("")}function ka(n,t,r){if(n=Ec(n),n&&(r||t===X))return n.replace(Lt,"");
 if(!n||!(t=vu(t)))return n;var e=G(n);return Ou(e,W(e,G(t))).join("")}function Oa(n,t){var r=An,e=kn;if(fc(t)){var u="separator"in t?t.separator:u;r="length"in t?kc(t.length):r,e="omission"in t?vu(t.omission):e}n=Ec(n);var i=n.length;if(T(n)){var o=G(n);i=o.length}if(r>=i)return n;var f=r-V(e);if(f<1)return e;var c=o?Ou(o,0,f).join(""):n.slice(0,f);if(u===X)return c+e;if(o&&(f+=c.length-f),Ah(u)){if(n.slice(f).search(u)){var a,l=c;for(u.global||(u=sl(u.source,Ec(Nt.exec(u))+"g")),u.lastIndex=0;a=u.exec(l);)var s=a.index;
diff --git a/lodash.js b/lodash.js
index 1d232ac5e..900cedf3d 100644
--- a/lodash.js
+++ b/lodash.js
@@ -4370,8 +4370,47 @@
      */
     function baseUnset(object, path) {
       path = castPath(path, object);
-      object = parent(object, path);
-      return object == null || delete object[toKey(last(path))];
+
+      // Prevent prototype pollution, see: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg
+      var index = -1,
+          length = path.length;
+
+      if (!length) {
+        return true;
+      }
+
+      var isRootPrimitive = object == null || (typeof object !== 'object' && typeof object !== 'function');
+
+      while (++index < length) {
+        var key = path[index];
+
+        // skip non-string keys (e.g., Symbols, numbers)
+        if (typeof key !== 'string') {
+          continue;
+        }
+
+        // Always block "__proto__" anywhere in the path if it's not expected
+        if (key === '__proto__' && !hasOwnProperty.call(object, '__proto__')) {
+          return false;
+        }
+
+        // Block "constructor.prototype" chains
+        if (key === 'constructor' &&
+            (index + 1) < length &&
+            typeof path[index + 1] === 'string' &&
+            path[index + 1] === 'prototype') {
+
+          // Allow ONLY when the path starts at a primitive root, e.g., _.unset(0, 'constructor.prototype.a')
+          if (isRootPrimitive && index === 0) {
+            continue;
+          }
+
+          return false;
+        }
+      }
+
+      var obj = parent(object, path);
+      return obj == null || delete obj[toKey(last(path))];
     }
 
     /**
diff --git a/test/test.js b/test/test.js
index 0b200185c..2baff3389 100644
--- a/test/test.js
+++ b/test/test.js
@@ -16573,6 +16573,21 @@
         assert.deepEqual(object, { 'a': { 'b': 2 } });
       });
     });
+
+    // Prevent regression for https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg
+    QUnit.test('Security: _.omit should not allow modifying prototype or constructor properties', function(assert) {
+      assert.expect(3);
+
+      var testObj1 = {};
+      assert.strictEqual(typeof testObj1.toString, 'function', 'Object.toString should work before omit');
+
+      _.omit({}, ['__proto__.toString']);
+      _.omit({}, ['constructor.prototype.toString']);
+
+      var testObj2 = {};
+      assert.strictEqual(typeof testObj2.toString, 'function', 'Object.toString should still work after omit');
+      assert.strictEqual(Object.prototype.toString.call({}), '[object Object]', 'Object.toString should behave as expected');
+    });
   }());
 
   /*--------------------------------------------------------------------------*/
@@ -25239,6 +25254,21 @@
         skipAssert(assert);
       }
     });
+
+    // Prevent regression for https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg
+    QUnit.test('Security: _.unset should not allow modifying prototype or constructor properties', function(assert) {
+      assert.expect(3);
+
+      var testStr1 = 'ABC';
+      assert.strictEqual(typeof testStr1.toLowerCase, 'function', 'String.toLowerCase should exist before unset');
+
+      _.unset({ foo: 'bar' }, 'foo.__proto__.toLowerCase');
+      _.unset({ foo: 'bar' }, 'foo.constructor.prototype.toLowerCase');
+
+      var testStr2 = 'ABC';
+      assert.strictEqual(typeof testStr2.toLowerCase, 'function', 'String.toLowerCase should still exist after unset');
+      assert.strictEqual(testStr2.toLowerCase(), 'abc', 'String.toLowerCase should work as expected');
+    });
   }());
 
   /*--------------------------------------------------------------------------*/