A flaw was found in keycloak-core. This flaw considers the scenario when using X509 Client Certificate Authenticatior with the option "Revalidate Client Certificate". A user may be able to choose, if directly connect to keycloak (not passing via reverse proxy) a specific certificate. If there's a configuration error in KCSPITRUSTSTOREFILEFILE the authenticator allows even with the "Cannot validate client certificate trust: Truststore not available" message as there's no certificate to trust against.
{ "nvd_published_at": null, "cwe_ids": [ "CWE-295" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-06-30T20:30:30Z" }