CVE-2026-77337

CVSS 9.1 (critical) · published 2026-08-24

CakePHP Authentication is an authentication plugin for CakePHP that can also be used in PSR-7 based applications. Versions before 2.11.2, from 3.0.0 through 3.3.6, and from 4.0.0 through 4.2.0 allow authentication bypass and potential CPU or memory exhaustion when CookieAuthenticator uses unencrypted, forgeable legacy tokens. This issue is fixed in versions 2.11.2, 3.3.7, and 4.2.1.

Weakness: CWE-290, CWE-770

Source: NVD CVE-2026-77337

References

• https://github.com/cakephp/authentication/commit/c94d9a5380e7f4fdf38d338a9de2223a5b087159
• https://github.com/cakephp/authentication/pull/806
• https://github.com/cakephp/authentication/pull/807
• https://github.com/cakephp/authentication/security/advisories/GHSA-h7xh-9h2x-2m37

Check your software

Connect an AI agent to the Fixlane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.