CVE-2026-55590

Description

CakePHP Authentication is an authentication plugin for CakePHP that can also be used in PSR-7 based applications. Prior to 2.11.1, 3.3.6, and 4.1.1, the getLoginRedirect() method contains a weakness to backslash bypasses that allows redirect targets with attacker-controlled hostnames through the redirect query string parameter. This issue is fixed in versions 2.11.1, 3.3.6, and 4.1.1.

References

• https://github.com/cakephp/authentication/commit/1c1e29c7e8129cfbcae74558316ecd3ea50a8273
• https://github.com/cakephp/authentication/commit/df28ea4e712f1e5bd0e42be4a3c5c750ca50764d
• https://github.com/cakephp/authentication/commit/ee24bd48b9c3ef693dc9965de8f0cc8020a7052c
• https://github.com/cakephp/authentication/pull/795
• https://github.com/cakephp/authentication/pull/796
• https://github.com/cakephp/authentication/pull/799
• https://github.com/cakephp/authentication/releases/tag/2.11.1
• https://github.com/cakephp/authentication/releases/tag/3.3.6
• https://github.com/cakephp/authentication/releases/tag/4.1.1
• https://github.com/cakephp/authentication/security/advisories/GHSA-hhpq-7wg4-36jm