CVE-2026-77337 PUBLISHED

CakePHP: Potential Authentication bypass with CookieAuthenticator

Assigner: GitHub_M
Reserved: 20.08.2026 Published: 24.08.2026 Updated: 25.08.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 9.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	cakephp
Product	authentication
Versions	Version < 2.11.2 is affected Version >= 3.0.0, < 3.3.7 is affected Version >= 4.0.0, < 4.2.1 is affected

References

Problem Types

CWE-290: Authentication Bypass by Spoofing CWE
CWE-770: Allocation of Resources Without Limits or Throttling CWE