6.5
Moyenne
CVE-2026-9796 A flaw was found in Keycloak
Description
A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Build of Keycloak | Versions non publiées | |
| Red Hat build of Keycloak 26.6 26.6 | premières → < 26.6-12 | 26.6-12 |
| Red Hat build of Keycloak 26.6.6 | Versions non publiées |
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6.4
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