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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-18207

Keycloak-services: keycloak-services: client policy source-group condition bypass via duplicate group name matching

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Data Grid 8

Default version status: unaffected

Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack

Default version status: unaffected

Red Hat Red Hat Single Sign-On 7

Default version status: unaffected

References