Description
A flaw was found in keycloack before version 8.0.0. The owner of 'placeholder.org' domain can setup mail server on this domain and knowing only name of a client can reset password and then log in. For example, for client name 'test' the email address will be 'service-account-test@placeholder.org'.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14837
https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f
https://issues.jboss.org/browse/KEYCLOAK-10780