CakePHP through 5.4.3 contains an improper cookie domain validation vulnerability in the Http Client CookieCollection that allows malicious servers to receive and plant cookies by abusing unanchored suffix matching. Attackers controlling a host such as one ending in a victim domain suffix, or sending Set-Cookie Domain values for unrelated hosts, can steal session cookies or inject cookies into shared client cookie jars.
Fix
Patch, vendor advisory and mitigation references on NVD 5
- https://github.com/cakephp/cakephp/commit/01753266738606bc0e48e61e44a6e252f11386f9 patch
- https://github.com/cakephp/cakephp/commit/5d9d01a91f0e678d857a94115de12c3e02f3fbba patch
- https://github.com/cakephp/cakephp/commit/bbba5ed06d5cea7e78333b01e65557cff7a28306 patch
- https://github.com/cakephp/cakephp/commit/819b45cbcc5ba864568cb57f62e4fde650b41161 patch
- https://github.com/cakephp/cakephp/pull/19702 patch, issue-tracking
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.3 · cakephpNVD modified 2026-10-30 11:30
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 10
- https://github.com/cakephp/cakephp/commit/01753266738606bc0e48e61e44a6e252f11386f9 patch
- https://github.com/cakephp/cakephp/commit/5d9d01a91f0e678d857a94115de12c3e02f3fbba patch
- https://github.com/cakephp/cakephp/commit/bbba5ed06d5cea7e78333b01e65557cff7a28306 patch
- https://github.com/cakephp/cakephp/commit/819b45cbcc5ba864568cb57f62e4fde650b41161 patch
- https://github.com/cakephp/cakephp/pull/19702 patch, issue-tracking
- https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L315 technical-description
- https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L74 technical-description
- https://abraxaslabs.tech/research/cakephp-cookie-suffix third-party-advisory
- https://github.com/cakephp/cakephp product
- https://www.vulncheck.com/advisories/cakephp-through-5.4.3-cookie-leakage-via-http-client-cookiecollection-domain-matching third-party-advisory