OpenRemote is an open-source internet-of-things platform. Prior to version 1.22.1, a user who has "write:admin" in one Keycloak realm can call the Manager API to update Keycloak realm roles for users in another realm, including "master". The handler uses the "{realm}" path segment when talking to the identity provider but does not check that the caller may administer that realm. This could result in a privilege escalation to "master" realm administrator if the attacker controls any user in "master" realm. Version 1.22.1 fixes the issue.