Session Management Flaw in Keycloak by Red Hat
CVE-2025-12110

5.4MEDIUM

Key Information:

Vendor

Keycloak

Status
Keycloak
Red Hat Build Of Keycloak 26.2
Red Hat Build Of Keycloak 26.2.11
Red Hat Build Of Keycloak 26.4
Vendor
CVE Published:
23 October 2025

What is CVE-2025-12110?

A vulnerability has been identified in Keycloak where offline sessions inadvertently remain valid even after the offline_access scope has been revoked. This oversight allows refresh tokens to be accepted continuously, enabling unauthorized access. Administrators might believe that removing the scope invalidates the session, but in reality, the session can still be exploited. This flaw highlights the need for stringent session management controls to prevent unauthorized access to secure resources.

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Deploy the Patch

Affected Version(s)

keycloak 0 < 26.4.3

Red Hat build of Keycloak 26.2 26.2.11-1

Red Hat build of Keycloak 26.2 26.2-12

References

https://access.redhat.com/errata/RHSA-2025:21370
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21371
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:22088
vendor-advisoryx_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

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