Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-9799

Gravedad CVSS v3.1:
MEDIA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
25/06/2026
Última modificación:
01/07/2026

Descripción

*** Pendiente de traducción *** A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. This allows the user to gain unauthorized access to all resources of that type within the same resource server, even if they do not have a ticket for those specific resources. This vulnerability requires the resource server to be configured in PERMISSIVE policy enforcement mode and affects typed resources with ownerManagedAccess enabled, where no explicit policy protects the resource type. The primary consequence is unauthorized information disclosure or modification of resources.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* 26.4 (incluyendo) 26.4.13 (excluyendo)
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* 26.6 (incluyendo) 26.6.4 (excluyendo)