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Fencer Vulns
high 7.7

CVE-2026-9165 json

Stackrox: stackrox: unbounded graphql query depth allows authenticated denial of service

published 2026-07-06 4 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-41859

cvss
7.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Advanced Cluster Security 4.9 1783357116
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.10 1783357140
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.11 1783352589

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-9165 updated cvss 7.7

stackrox: stackrox: Unbounded GraphQL query depth allows authenticated denial of service

  • Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel11
    affected: workaround, no fix available “There is no complete mitigation other than installing the update once available.”
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security/rhacs-main-rhel8 1783357116
    fixed: vendor fix “There is no complete mitigation other than installing the update once available.” RHSA-2026:36319
  • Red Hat Advanced Cluster Security for Kubernetes 4.10 advanced-cluster-security/rhacs-main-rhel8 1783357140
    fixed: vendor fix “There is no complete mitigation other than installing the update once available.” RHSA-2026:36625
  • Red Hat Advanced Cluster Security for Kubernetes 4.11 advanced-cluster-security/rhacs-main-rhel9 1783352589
    fixed: vendor fix “There is no complete mitigation other than installing the update once available.” RHSA-2026:36207
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security/rhacs-roxctl-rhel8 1783357116, advanced-cluster-security/rhacs-scanner-rhel8 1782891812, advanced-cluster-security/rhacs-rhel8-operator 1783357116, advanced-cluster-security/rhacs-collector-rhel8 1782290046, advanced-cluster-security/rhacs-operator-bundle 1783357116, advanced-cluster-security/rhacs-central-db-rhel8 1783357116, +5 more Red Hat Advanced Cluster Security for Kubernetes 4.10 advanced-cluster-security/rhacs-fact-rhel8 1782356145, advanced-cluster-security/rhacs-roxctl-rhel8 1783357140, advanced-cluster-security/rhacs-scanner-rhel8 1782891789, advanced-cluster-security/rhacs-rhel8-operator 1783357140, advanced-cluster-security/rhacs-collector-rhel8 1782187369, advanced-cluster-security/rhacs-operator-bundle 1783357140, +6 more Red Hat Advanced Cluster Security for Kubernetes 4.11 advanced-cluster-security/rhacs-fact-rhel9 1782109225, advanced-cluster-security/rhacs-roxctl-rhel9 1783352589, advanced-cluster-security/rhacs-scanner-rhel9 1782925137, advanced-cluster-security/rhacs-rhel9-operator 1783352589, advanced-cluster-security/rhacs-collector-rhel9 1782122242, advanced-cluster-security/rhacs-operator-bundle 1783352589, +6 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Advanced Cluster Security 4.9
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.10
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.11
  • Red Hat Red Hat Advanced Cluster Security 4

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.