Apache CloudStack CKS Improper Access Control (Cross-Tenant) 4.21.0.0-4.22.1.0
CVE-2026-62440 Published on August 21, 2026
Apache CloudStack: Improper access control in Kubernetes Service (CKS) cluster manipulation
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.
Vulnerability Analysis
CVE-2026-62440 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-62440 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-62440
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Affected Versions
Apache Software Foundation Apache CloudStack:- Version 4.21.0.0, <= 4.22.1.0 is affected.