CVE-2025-13467

Medium

Description

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.

SeverityMedium

CVSS5.5

Exploit probability—

ProductOrg.keycloak:keycloak-ldap-federation

PublishedNov 25, 2025

First seenNov 25, 2025

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

org.keycloak:keycloak-ldap-federation26.4.6, 26.2.11 or later

Vendor advisories

access.redhat.com/errata/RHSA-2025:22088
access.redhat.com/errata/RHSA-2025:22089
access.redhat.com/errata/RHSA-2025:22090
access.redhat.com/errata/RHSA-2025:22091

Affected products

Product	Affected versions	Fixed in
org.keycloak:keycloak-ldap-federationMaven	26.3.0 ≤ v < 26.4.6, v < 26.2.11	26.4.6, 26.2.11

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