CVE-2026-9165 Stackrox: stackrox: unbounded graphql query depth allows authenticated denial of service
Authenticated users can cause denial of service in Red Hat Advanced Cluster Security by sending deeply nested GraphQL queries that exhaust resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9165?
CVE-2026-9165 is a high-severity denial of service vulnerability in Red Hat Advanced Cluster Security 4, published on 6 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-400
Which versions are affected by CVE-2026-9165?
How do I fix CVE-2026-9165?
No fix has been published for CVE-2026-9165 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-9165 being exploited?
There is no known exploitation of CVE-2026-9165 in the wild and no public exploit code.
Sources
Also known as GHSA-fw53-q2vg-jr6g.