BIT-KEYCLOAK-2026-37981 Keycloak: org.keycloak.authorization: keycloak: information disclosure via broken access control in user lookup endpoint

A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access UMA resource, to enumerate and harvest personally identifiable information PII for all realm users. By...

CVE-2026-37981: Insufficient Granularity of Access Control

A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access UMA resource, to enumerate and harvest personally identifiable information PII for all realm users. By...

CVE-2026-4628

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...