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5.4 Moyenne

CVE-2026-16093 Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them…

Description

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned assertion header that tricks the system into thinking the policy requirements have been met. This allows the attacker to authenticate using simpler methods like a client secret even when the administrator has mandated more secure, signed assertions.

Produits et versions touchés

Produit Versions touchées Corrigé en
Red Hat Build of Keycloak Versions non publiées
Red Hat Data Grid 8 Versions non publiées
Red Hat JBoss Enterprise Application Platform Expansion Pack Versions non publiées
Red Hat Single Sign-On 7 Versions non publiées
Red Hat build of Keycloak 26.6 26.6 premières → < 26.6-20 26.6-20
Red Hat build of Keycloak 26.6.7 Versions non publiées

Références

Chronologie

  1. Publiée
  2. Dernière modification

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