Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.

Affected: Maven: org.keycloak:keycloak-core

Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.

keycloak: user deletion via incorrect permissions check wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage keycloak: timing attack in JWS signature verification