CVE-2026-9165

Red Hat Advanced Cluster Security for KuVulnerabilityCVSS 7.7

A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). Central does not limit the depth of GraphQL queries served on the authenticated GraphQL API. An authenticated user with a valid API token can send deeply nested queries that cause excessive resource consumption in Central, resulting in a denial of service for the management plane.

No public exploitation has been reported so far. No distribution fix is listed yet; apply vendor mitigations and monitor.

Recommended action: Track your distribution's security tracker and apply the fix as soon as it ships.

CVE-2026-9165 Red Hat Advanced Cluster Security for Ku Vulnerability

Severity metrics

CVSS 3.1 : 7.7 HIGH

Attack vectorNetwork (remote)

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeChanged

Confidentiality impactNone

Integrity impactNone

Availability impactHigh

Vector: AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected & fixed versions by distribution

Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.

No affected package in the tracked watchlist yet (Debian, Ubuntu, Arch, SUSE, Red Hat...). Triage may still be pending.

Sources

Advisory NVD CVE.org

Published 2026-07-06 · updated 2026-07-25 · source: NVD