A flaw was found in keycloak. A keycloak adapter exposes internal endpoints in org.keycloak.constants.AdapterConstantsThe keycloak which can be invoked by appending the appropriate suffix (e.g. kversion) to any URL. This vulnerability might lead to an information exposure.

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'

Upstream issue:

https://issues.jboss.org/browse/KEYCLOAK-10780

Upstream patch:

https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f

A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ('http' or 'ldap') and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle.