Session Management Flaw in Keycloak Affects User Security
CVE-2025-11429

5.4MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Keycloak
Vendor
CVE Published:
23 October 2025

What is CVE-2025-11429?

A vulnerability in Keycloak's session management allows existing user sessions to retain extended lifetimes even after the 'Remember Me' setting has been disabled by an administrator. This occurs because the session expiration logic improperly relies on a local session flag without re-evaluating the current realm configuration. As a result, this flaw creates an increased risk for session hijacking and unauthorized long-term access.

References

https://access.redhat.com/security/cve/CVE-2025-11429
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2402148
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Alexander Schwartz (Red Hat).
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CVE-2025-11429 : Session Management Flaw in Keycloak Affects User Security