🔐 CVE Alert

CVE-2026-119416

MEDIUM 4.8

CakePHP through 5.4.3 Cookie Leakage via HTTP Client CookieCollection Domain Matching

CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-346
Vendor cakephp
Product cakephp
Published Oct 30, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

cakephp / cakephp
0 ≤ 5.4.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
github.com: https://github.com/cakephp/cakephp/commit/01753266738606bc0e48e61e44a6e252f11386f9 github.com: https://github.com/cakephp/cakephp/commit/5d9d01a91f0e678d857a94115de12c3e02f3fbba github.com: https://github.com/cakephp/cakephp/commit/bbba5ed06d5cea7e78333b01e65557cff7a28306 github.com: https://github.com/cakephp/cakephp/commit/819b45cbcc5ba864568cb57f62e4fde650b41161 github.com: https://github.com/cakephp/cakephp/pull/19702 github.com: https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L315 github.com: https://github.com/cakephp/cakephp/blob/6f3dd91371ac0698b64024ddb21d57def9fbba91/src/Http/Cookie/CookieCollection.php#L74 abraxaslabs.tech: https://abraxaslabs.tech/research/cakephp-cookie-suffix github.com: https://github.com/cakephp/cakephp vulncheck.com: https://www.vulncheck.com/advisories/cakephp-through-5.4.3-cookie-leakage-via-http-client-cookiecollection-domain-matching

Credits

Abraxas Labs Mark Story