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In violation of spec, cookie prefixes such as `__Secure` were being ignored if they were not correctly capitalized - by spec they should be checked with a case-insensitive comparison. This could have resulted in the browser not correctly honoring the behaviors specified by the prefix. This vulnerability affects Firefox < 127.
Reserved 2024-06-06 | Published 2024-06-11 | Updated 2024-08-12 | Assigner mozillaCookie prefixes not treated as case-sensitive
Konstantin Preißer
bugzilla.mozilla.org/show_bug.cgi?id=1891349
www.mozilla.org/security/advisories/mfsa2024-25/
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