5.9
Moyenne
CVE-2026-9793 A flaw was found in Keycloak
Description
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Build of Keycloak | Versions non publiées | |
| Red Hat build of Keycloak 26.4 26.4 | premières → < 26.4-22 | 26.4-22 |
| Red Hat build of Keycloak 26.4.14 | Versions non publiées | |
| Red Hat build of Keycloak 26.6 26.6 | premières → < 26.6-11 | 26.6-11 |
| Red Hat build of Keycloak 26.6.5 | Versions non publiées |
Références
- RHSA-2026:50846 access.redhat.com
- RHSA-2026:50847 access.redhat.com
- RHSA-2026:50848 access.redhat.com
- RHSA-2026:50849 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2482460 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification
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