Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Incorrect Behavior Order: Authorization Before Parsing and Canonicalization via the UMA Policy Resource user...

keycloak: Keycloak: UMA policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.

A flaw was found in Keycloak. An authenticated user with the umaprotection role can bypass User-Managed Access UMA policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned...

CVE-2026-4636 Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.

A flaw was found in Keycloak. An authenticated user with the umaprotection role can bypass User-Managed Access UMA policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned...

CVE-2025-14778

A vulnerability in Keycloak’s UMA Protection API (UserManagedPermissionService) allows horizontal privilege escalation when updating or deleting a UMA policy tied to multiple resources. The authorization check currently validates ownership only against the first resource in the policy’s list, ena...

Keycloak code execution via UMA policy abuse

A flaw was found in Keycloak’s user-managed access interface, where it would permit a script to be set in the UMA policy. This flaw allows an authenticated attacker with UMA permissions to configure a malicious script to trigger and execute arbitrary code with the permissions of the user running...

GHSA-9C24-43P5-FV82 Keycloak code execution via UMA policy abuse

A flaw was found in Keycloak’s user-managed access interface, where it would permit a script to be set in the UMA policy. This flaw allows an authenticated attacker with UMA permissions to configure a malicious script to trigger and execute arbitrary code with the permissions of the user running...