CVE-2025-0604: Keycloak ldap federation Authentication Bypass Vulnerability

MODERATE
Advisory Identifier: GHSA-2p82-5wwr-43cw
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CVSS 5.4
CWE-287
Published
Advisory Summary

CVE-2025-0604 is a MODERATE (CVSS 5.4) authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Keycloak ldap federation libraries in the Maven ecosystem. The issue involves authentication bypass due to missing ldap bind after password reset in keycloak. Remediation is available by upgrading affected packages to version 26.1.3, 26.0.10.

CVE-2025-0604 at a Glance

CVE Identifier CVE-2025-0604
GHSA Identifier GHSA-2p82-5wwr-43cw
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-287: Improper Authentication
Affected Product Keycloak ldap federation
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-0604

To remediate this vulnerability, upgrade all affected Keycloak ldap federation dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.keycloak:keycloak-ldap-federation fixed: 26.1.3 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-ldap-federation</artifactId>
    <version>26.1.3</version>
</dependency>
org.keycloak:keycloak-ldap-federation fixed: 26.0.10 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-ldap-federation</artifactId>
    <version>26.0.10</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.keycloak

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2025-0604, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.keycloak

Analyze the terminal output to locate any version of Keycloak ldap federation in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.1.3), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.keycloak command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Keycloak ldap federation, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2025-0604 Affected Keycloak ldap federation Versions

2 component(s)
Fixed Versions:
26.1.326.0.10
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-ldap-federation
maven/org.keycloak/keycloak-ldap-federation
Maven
≥ 26.1.0
< 26.1.3
26.1.3
org.keycloak:keycloak-ldap-federation
maven/org.keycloak/keycloak-ldap-federation
Maven
< 26.0.10
26.0.10

References

GitHub Advisory / Wiki ADVISORY
https://github.com/keycloak/keycloak/security/advisories/GHSA-2p82-5wwr-43cw
NVD — CVE-2025-0604 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-0604
access.redhat.com/errata/rhsa-2025:25... WEB
https://access.redhat.com/errata/RHSA-2025:2545
Keycloak ldap federation Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-0604
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2338993
Keycloak ldap federation Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is CVE-2025-0604?
CVE-2025-0604 is a security vulnerability in Keycloak ldap federation involving Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak under CWE-287: Improper Authentication.
Which Keycloak ldap federation versions are affected?
Affected versions include releases prior to 26.1.3, 26.0.10 across affected packages: org.keycloak:keycloak-ldap-federation.
What version fixes CVE-2025-0604?
Upgrading to 26.1.3, 26.0.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-ldap-federation affected?
Yes, org.keycloak:keycloak-ldap-federation is affected in releases prior to 26.1.3, 26.0.10. Upgrade your dependency to 26.1.3, 26.0.10 or later.
What is the CVSS score of CVE-2025-0604?
CVE-2025-0604 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2025-0604?
CVE-2025-0604 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Maven dependencies for CVE-2025-0604?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.keycloak'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-2p82-5wwr-43cw",
  "modified" : "2025-03-10T21:07:30Z",
  "published" : "2025-03-10T21:07:29Z",
  "aliases" : [ "CVE-2025-0604" ],
  "summary" : "Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-ldap-federation"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "26.1.0"
      }, {
        "fixed" : "26.1.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-ldap-federation"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "26.0.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-2p82-5wwr-43cw"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-0604"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:2545"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-0604"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2338993"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-10T21:07:29Z",
    "nvd_published_at" : null
  }
}