EUVD-2026-32716
GHSA-pq65-77rc-7r8c
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
Privilege escalation in Red Hat Build of Keycloak allows an authenticated administrator holding the manage-clients role to exploit a Time-of-check to time-of-use (TOCTOU) race condition in name-based admin role checks, elevating their privileges to realm-admin for all users within the realm. The resulting composite role relationship is persistent - it survives both manual revocation of the attacker's original permissions and system reboots, making remediation non-trivial post-exploitation. …
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External POC / Exploit Code
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