CVE-2026-16102
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-284
Control de acceso incorrecto
Fecha de publicación:
05/08/2026
Última modificación:
20/08/2026
Descripción
*** Pendiente de traducción *** A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker with a standard user account and a limited Initial Access Token can exploit this to forge administrative roles in their access token. This allows the attacker to take over other clients, steal confidential secrets, and potentially gain full administrative control over the realm.
Impacto
Puntuación base 3.x
8.10
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* | 26.4 (incluyendo) | 26.4.14 (excluyendo) |
| cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* | 26.6 (incluyendo) | 26.6.5 (excluyendo) |
| cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:* | ||
| cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:* | ||
| cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página
Referencias a soluciones, herramientas e información
- https://access.redhat.com/errata/RHSA-2026:50846
- https://access.redhat.com/errata/RHSA-2026:50847
- https://access.redhat.com/errata/RHSA-2026:50848
- https://access.redhat.com/errata/RHSA-2026:50849
- https://access.redhat.com/security/cve/CVE-2026-16102
- https://bugzilla.redhat.com/show_bug.cgi?id=2501735


