CVE-2025-0604: Keycloak-ldap-federation: authentication bypass due to missing ldap bind after password reset in keycloak

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-22 · updated 2026-09-21
Weakness: CWE-287

Description

A flaw was found in Keycloak. When an Active Directory user resets their password, the system updates it without performing an LDAP bind to validate the new credentials against AD. This vulnerability allows users whose AD accounts are expired or disabled to regain access in Keycloak, bypassing AD restrictions. The issue enables authentication bypass and could allow unauthorized access under certain conditions.

Affected products

Red Hat build of Keycloak 26.4: all versions — fixed in 26.0-11, 26.0-12, 26.0.10-3
Red Hat Single Sign-On 7: all versions

How to fix

Upgrade to a fixed version: Red Hat build of Keycloak 26.4 26.0-11, 26.0-12, 26.0.10-3. Check the vendor advisory for mitigations.

References

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