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| author | Michał Gołębiowski-Owczarek <m.goleb@gmail.com> | 2019-03-25 17:57:30 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-03-25 17:57:30 +0100 |
| commit | 753d591aea698e57d6db58c9f722cd0808619b1b (patch) | |
| tree | 7e39c9e4e96d8323af016f4a596ba10c4190e98e /src/core.js | |
| parent | 669f720edc4f557dfef986db747c09ebfaa16ef5 (diff) | |
| download | jquery-753d591aea698e57d6db58c9f722cd0808619b1b.tar.gz jquery-753d591aea698e57d6db58c9f722cd0808619b1b.zip | |
Core: Prevent Object.prototype pollution for $.extend( true, ... )
Closes gh-4333
Diffstat (limited to 'src/core.js')
| -rw-r--r-- | src/core.js | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/core.js b/src/core.js index d9c7e9882..3ef92d48f 100644 --- a/src/core.js +++ b/src/core.js @@ -158,8 +158,9 @@ jQuery.extend = jQuery.fn.extend = function() { for ( name in options ) { copy = options[ name ]; + // Prevent Object.prototype pollution // Prevent never-ending loop - if ( target === copy ) { + if ( name === "__proto__" || target === copy ) { continue; } |