PT-2025-48039 · Red Hat+1 · Keycloak+1

Stianst · Published 2025-11-25 · Updated 2025-12-26 · CVE-2025-13467

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Keycloak (affected versions not specified)

Description A flaw exists in the Keycloak LDAP User Federation provider that allows an authenticated realm administrator to trigger deserialization of untrusted Java objects. This is achieved through a malicious LDAP server configuration. The issue allows for the deserialization of untrusted Java objects.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2025-13467

ECHO-E9A5-64E7-D563

GHSA-4HX9-48XH-5MXR

GHSA-93VM-MQPW-8WH3

Affected Products

Alt Linux

Keycloak

References · 24

• https://access.redhat.com/errata/RHSA-2025:22088 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:22091 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-13467 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:22089 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:22090 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-93vm-mqpw-8wh3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-13467 · Security Note
• https://osv.dev/vulnerability/GHSA-4hx9-48xh-5mxr · Vendor Advisory
• https://github.com/keycloak/keycloak · Note
• https://github.com/keycloak/keycloak/issues/44478 · Note
• https://github.com/keycloak/keycloak/releases/tag/26.4.6 · Note
• https://github.com/keycloak/keycloak/commit/754c070cf8ca187dcc71f0f72ff3130ff2195328 · Note
• https://github.com/keycloak/keycloak/security/advisories/GHSA-4hx9-48xh-5mxr · Note
• https://github.com/keycloak/keycloak/commit/b90fec41ff17a70858d830750156a8a2e13ddb82 · Note
• https://reddit.com/r/VulnMatter/comments/1pt1cm5/resumen_diario_de_vulnerabilidades_22122025 · Reddit Post