Description
Improper Access Control vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin, allowing cross-tenant manipulation of the Kubernetes cluster while adding and removing nodes.

This issue affects Apache CloudStack: from 4.21.0.0 through 4.22.1.0.

Users are recommended to upgrade to version 4.22.1.1 or later, which fixes the issue.
Published: 2026-08-21
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Thu, 27 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache cloudstack
CPEs cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*
Vendors & Products Apache cloudstack

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache apache Cloudstack
Vendors & Products Apache
Apache apache Cloudstack

Fri, 21 Aug 2026 08:45:00 +0000

Type Values Removed Values Added
Description Improper Access Control vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin, allowing cross-tenant manipulation of the Kubernetes cluster while adding and removing nodes. This issue affects Apache CloudStack: from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.22.1.1 or later, which fixes the issue.
Title Apache CloudStack: Improper access control in Kubernetes Service (CKS) cluster manipulation
Weaknesses CWE-284
References

Subscriptions

Apache Apache Cloudstack Cloudstack
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-08-25T19:20:14.393Z

Reserved: 2026-07-14T14:34:44.941Z

Link: CVE-2026-62440

cve-icon Vulnrichment

Updated: 2026-08-25T19:20:07.816Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-21T09:16:39.963

Modified: 2026-08-27T14:36:24.260

Link: CVE-2026-62440

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T03:45:03Z

Weaknesses