CVE-2026-119416

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.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

No configuration.

History

30 Oct 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 12:16

Updated : 2026-10-30 19:07

NVD link : CVE-2026-119416

Mitre link : CVE-2026-119416

CVE.ORG link : CVE-2026-119416

JSON object : View

Products Affected

No product.

CWE

CWE-346

Origin Validation Error

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