CVE-2025-11429 MEDIUM

CVE-2025-11429: Keycloak-server: too long and not settings compliant session

Vendor Keycloak
Product keycloak
Weakness CWE-613 · Insufficient session expiration
Published October 23, 2025
Last update January 20, 2026

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

A flaw was found in Keycloak. Keycloak does not immediately enforce the disabling of the "Remember Me" realm setting on existing user sessions. Sessions created while "Remember Me" was active retain their extended session lifetime until they expire, overriding the administrator's recent security configuration change. This is a logic flaw in session management increases the potential window for successful session hijacking or unauthorized long-term access persistence. The flaw lies in the session expiration logic relying on the session-local "remember-me" flag without validating the current realm-level configuration.

Key dates

02Disclosure timeline

October 23, 2025 CVE published
January 20, 2026 Record updated