This vulnerability is marked as RESERVED by NVD. This means that the CVE-ID is reserved for future use by the CVE Numbering Authority (CNA) or a security researcher, but the details of it are not yet publicly available yet.
This page will reflect the classification results once they are available through NVD.
Any vendor information available is shown as below.
org.keycloak/keycloak-quarkus-server: Keycloak: Unauthorized Access via JWT authorization grant with disabled users
To mitigate this issue, ensure that the jwt-authorization-grant preview feature is not enabled in Keycloak deployments. This feature is typically disabled by default. If it has been explicitly enabled, it should be disabled to prevent unauthorized access by disabled user accounts. Consult Keycloak documentation for specific instructions on managing preview features and configuration. A restart of the Keycloak service may be required after disabling the feature for the changes to take effect.