CVE-2026-9165: Uncontrolled Resource Consumption in Red Hat Red Hat Advanced Cluster Security 4
CVE-2026-9165 is a vulnerability in Red Hat Advanced Cluster Security for Kubernetes (RHACS) version 4 where the Central component does not limit the depth of GraphQL queries on its authenticated API. This allows an authenticated user with a valid API token to send deeply nested queries that cause excessive resource consumption, leading to a denial of service affecting the management plane.
AI Analysis
Technical Summary
The vulnerability in Red Hat Advanced Cluster Security 4 arises because the Central service does not impose limits on the depth of GraphQL queries processed via its authenticated API. An attacker with valid authentication can exploit this by crafting deeply nested GraphQL queries, which consume excessive system resources and cause a denial of service condition on the management plane. This flaw impacts availability but does not affect confidentiality or integrity.
Potential Impact
An authenticated user with valid API credentials can cause a denial of service by sending deeply nested GraphQL queries that exhaust resources in the Central component of RHACS. This results in unavailability of the management plane, impacting cluster security management operations. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-9165 for current remediation guidance. Until a fix is available, consider restricting API token issuance and monitoring for unusual query patterns if possible. No official fix or temporary workaround is currently documented.
CVE-2026-9165: Uncontrolled Resource Consumption in Red Hat Red Hat Advanced Cluster Security 4
Description
CVE-2026-9165 is a vulnerability in Red Hat Advanced Cluster Security for Kubernetes (RHACS) version 4 where the Central component does not limit the depth of GraphQL queries on its authenticated API. This allows an authenticated user with a valid API token to send deeply nested queries that cause excessive resource consumption, leading to a denial of service affecting the management plane.
CVSS v3.1
Score 7.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Red Hat Advanced Cluster Security 4 arises because the Central service does not impose limits on the depth of GraphQL queries processed via its authenticated API. An attacker with valid authentication can exploit this by crafting deeply nested GraphQL queries, which consume excessive system resources and cause a denial of service condition on the management plane. This flaw impacts availability but does not affect confidentiality or integrity.
Potential Impact
An authenticated user with valid API credentials can cause a denial of service by sending deeply nested GraphQL queries that exhaust resources in the Central component of RHACS. This results in unavailability of the management plane, impacting cluster security management operations. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-9165 for current remediation guidance. Until a fix is available, consider restricting API token issuance and monitoring for unusual query patterns if possible. No official fix or temporary workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-05-21T12:54:16.202Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-9165","vendor":"Red Hat"}]
Threat ID: 6a4b6cb027e9c797192526af
Added to database: 07/06/2026, 08:52:00 UTC
Last enriched: 07/06/2026, 09:06:16 UTC
Last updated: 07/06/2026, 11:47:54 UTC
Views: 8
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