keycloak-services: keycloak-services: DCR protocol mapper type-swap policy bypass allows privilege escalation

A flaw was found in Keycloak's Dynamic Client Registration DCR security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains...

CVE-2026-15572

CVE-2026-15572 (Keycloak) affects Keycloak’s Dynamic Client Registration (DCR) policy management. The bug is in the "Allowed Protocol Mapper Types" policy: during a client update, if the mapper’s configuration doesn’t change, re-validation of the mapper type is skipped, enabling an attacker with ...