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HistoryMay 21, 2024 - 3:08 p.m.

Some CORS middleware allow untrusted origins in github.com/jub0bs/cors

2024-05-2115:08:01
Google
osv.dev
3
cors
middleware
untrusted origins
cross-origin attacks
software

AI Score

7

Confidence

Low

Some CORS middleware (more specifically those created by specifying two or more origin patterns whose hosts share a proper suffix) incorrectly allow some untrusted origins, thereby opening the door to cross-origin attacks from the untrusted origins in question.

For example, specifying origin patterns “https://foo.com” and “https://bar.com” (in that order) would yield a middleware that would incorrectly allow untrusted origin “https://barfoo.com”.

AI Score

7

Confidence

Low