PT-2026-65741 · Red Hat · Red Hat Build Of Keycloak+3

CVE-2026-18207 · Published 2026-07-29 · Updated 2026-07-29

NVD

CVSS v3.1

6.5

Medium

Base vector

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

A flaw was found in the client policy enforcement mechanism of Keycloak. The issue occurs when the system checks group membership by name instead of a unique identifier. An attacker with client management privileges could bypass security policies by joining a group with a matching name in a different part of the group hierarchy, potentially allowing them to register or update clients without following required security hardening profiles.

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2026-18207

Affected Products

Red Hat Build Of Keycloak

Red Hat Data Grid 8

Red Hat Jboss Enterprise Application Platform Expansion Pack

Red Hat Single Sign-On 7

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-18207 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-18207 · Note