Vulnerability DatabaseCVE-2026-62440
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CVE-2026-62440
Published:August 21, 2026
Updated:September 24, 2026
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.
Affected Packages
https://github.com/apache/cloudstack.git (GITHUB):
Affected version(s) >=4.21.0.0 <4.22.1.1
Fix Suggestion:
Update to version 4.22.1.1
Related Resources (3)
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62440.json
https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc
https://nvd.nist.gov/vuln/detail/CVE-2026-62440
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Access Control
CWE-284
EPSS
Base Score:
0.30