CVE-2026-9165: Stackrox: stackrox: unbounded graphql query depth allows authenticated denial of service

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-06 · updated 2026-09-08
Weakness: CWE-400

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.

Affected products

Red Hat Advanced Cluster Security 4: all versions
Red Hat Advanced Cluster Security 4.9: all versions — fixed in 1783357116
Red Hat Advanced Cluster Security for Kubernetes 4.10: all versions — fixed in 1783357140
Red Hat Advanced Cluster Security for Kubernetes 4.11: all versions — fixed in 1783352589

How to fix

Upgrade to a fixed version: Red Hat Advanced Cluster Security 4.9 1783357116; Red Hat Advanced Cluster Security for Kubernetes 4.10 1783357140; Red Hat Advanced Cluster Security for Kubernetes 4.11 1783352589. Check the vendor advisory for mitigations.

References

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