GHSA-5cc8-pgp5-7mpm
Keycloak Untrusted Certificate Validation vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.keycloak:keycloak-core | < 21.1.2 | 21.1.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
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 KC_SPI_TRUSTSTORE_FILE_FILE the authenticator allows even with the "Cannot validate client certificate trust: Truststore not available" message as there's no certificate to trust against.
References
External links from the advisory. They lead to third-party sites.