CVE-2026-77337
Published:August 24, 2026
Updated:September 24, 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.
Affected Packages
https://github.com/cakephp/authentication.git (GITHUB):
Affected version(s) >=3.0.0 <3.3.7Fix Suggestion:
Update to version 3.3.7https://github.com/cakephp/authentication.git (GITHUB):
Affected version(s) >=1.0.0-alpha1 <2.11.2Fix Suggestion:
Update to version 2.11.2https://github.com/cakephp/authentication.git (GITHUB):
Affected version(s) >=4.0.0 <4.2.1Fix Suggestion:
Update to version 4.2.1cakephp/authentication (PHP):
Affected version(s) >=3.0.0 <3.3.7Fix Suggestion:
Update to version 3.3.7cakephp/authentication (PHP):
Affected version(s) >=4.0.0 <4.2.1Fix Suggestion:
Update to version 4.2.1cakephp/authentication (PHP):
Affected version(s) >=1.0.0-alpha1 <2.11.2Fix Suggestion:
Update to version 2.11.2Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.39