CVE-2026-1609
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-284
Control de acceso incorrecto
Fecha de publicación:
16/07/2026
Última modificación:
16/07/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 3.x
8.10
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://access.redhat.com/security/cve/CVE-2026-1609
- https://bugzilla.redhat.com/show_bug.cgi?id=2435257
- https://github.com/keycloak/keycloak/issues/46144
- https://github.com/keycloak/keycloak/releases/tag/26.5.3
- https://access.redhat.com/security/cve/CVE-2026-1609
- https://bugzilla.redhat.com/show_bug.cgi?id=2435257
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1609.json