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Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak

Moderate severity GitHub Reviewed Published Mar 10, 2025 in keycloak/keycloak • Updated Mar 10, 2025

Package

maven org.keycloak:keycloak-ldap-federation (Maven)

Affected versions

>= 26.1.0, < 26.1.3
< 26.0.10

Patched versions

26.1.3
26.0.10

Description

The issue arises because Keycloak does not perform an LDAP bind after a password reset, leading to potential authentication bypass for expired or disabled AD accounts. A fix should enforce LDAP validation after password updates to ensure consistency with AD authentication policies.

References

@rmartinc rmartinc published to keycloak/keycloak Mar 10, 2025
Published to the GitHub Advisory Database Mar 10, 2025
Reviewed Mar 10, 2025
Last updated Mar 10, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(18th percentile)

Weaknesses

CVE ID

CVE-2025-0604

GHSA ID

GHSA-2p82-5wwr-43cw

Source code

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