Auth bypass in Red Hat Build Of Keycloak

CVE-2026-14614

A flaw was found in the ClientResource component of Keycloak's admin services when Fine-Grained Admin Permissions (FGAP) v2 is enabled. This issue allows a delegated administrator, who should only have limited control over specific clients, to attach or remove hidden client scopes that they are not authorized to see or manage. As a result, an attacker could inject unauthorized data or permissions into the security tokens issued to end-users, potentially tricking other applications into granting higher levels of access than intended.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.