CVE-2026-1609 | BDVDB-2026-348809 Detail

Description#

A flaw was found in Keycloak. When the JSON Web Token (JWT) authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper access control vulnerability by presenting a valid assertion token from an external identity provider to obtain a JWT for a disabled user. This allows unauthorized access to sensitive resources.

Impact#

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Exploit#

History#

1. Version 12026-07-16Record published in the CVE List.
2. Version 22026-08-10Most recent update recorded in the CVE List.