# CVE-2025-13467: Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization

Source: https://junglewise.ai/threats/cve-2025-13467-keycloak-ldap-user-federation-provider-enables-admin-triggered  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-25  
License: CC BY 4.0 with a link back

CVE-2025-13467 · Severity: medium · CVSS 5.5 · Published 2025-11-25

A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.

Technologies: [org.keycloak:keycloak-ldap-federation (Maven)](https://junglewise.ai/threats/technologies/org-keycloak-keycloak-ldap-federation). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2025-13467 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-13467 being exploited in the wild.

**How severe is CVE-2025-13467?** Medium severity, with a CVSS score of 5.5, published 25 November 2025.

**Which products and versions are affected?** org.keycloak:keycloak-ldap-federation (Maven) ECOSYSTEM:introduced=26.3.0,fixed=26.4.6.

**Is there a fix for CVE-2025-13467?** Yes. org.keycloak:keycloak-ldap-federation (Maven): upgrade to 26.4.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-13467?** Check whether you run org.keycloak:keycloak-ldap-federation (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- org.keycloak:keycloak-ldap-federation (Maven): upgrade to 26.4.6 or later

  ```sh
  # set org.keycloak:keycloak-ldap-federation to 26.4.6 in your pom.xml or build.gradle
  ```


## Affected products

- org.keycloak:keycloak-ldap-federation (Maven) ECOSYSTEM:introduced=26.3.0,fixed=26.4.6

## Identifiers

- CVE-2025-13467
- GHSA-4hx9-48xh-5mxr

## Related threats

- [Keycloak denial of service via malformed LDAP password policy response](https://junglewise.ai/threats/cve-2026-9801-keycloak-denial-of-service-via-malformed-ldap-password-policy)
- [Duplicate Advisory: Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization](https://junglewise.ai/threats/duplicate-advisory-keycloak-ldap-user-federation-provider-enables-admin-6ef538fe)
- [Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak](https://junglewise.ai/threats/cve-2025-0604-authentication-bypass-due-to-missing-ldap-bind-after-password)
- [Duplicate Advisory: Authentication Bypass Due to Missing LDAP Bind After Password Reset in Keycloak](https://junglewise.ai/threats/duplicate-advisory-authentication-bypass-due-to-missing-ldap-bind-after-f416d8ed)
- [Keycloak leaks configured LDAP bind credentials through the Keycloak admin console](https://junglewise.ai/threats/cve-2024-5967-keycloak-leaks-configured-ldap-bind-credentials-through-the)