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CVE-2026-62440: CWE-284 Improper Access Control in Apache Software Foundation Apache CloudStack

0
Critical
VulnerabilityCVE-2026-62440cvecve-2026-62440cwe-284
Published: 08/21/2026 (08/21/2026, 08:23:55 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache CloudStack

Description

CVE-2026-62440 is an improper access control vulnerability in the Kubernetes Service (CKS) plugin of Apache CloudStack. It allows unauthorized cross-tenant manipulation of Kubernetes clusters during node addition and removal. The issue affects Apache CloudStack versions from 4.21.0.0 through 4.22.1.0. Upgrading to version 4.22.1.1 or later resolves the vulnerability.

CVSS v3.1

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected software

Apache Software Foundation

Apache CloudStack

Affected versions
>=4.21.0.0 <=4.22.1.0
Mavenmore threats →ai
org.apache/cloudstack
pkg:maven/org.apache/cloudstack
Affected versions
=4.21.0.0>=4.21.0.0 <=4.22.1.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/10/2026, 18:30:30 UTC

Technical Analysis

This vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin arises from improper access control (CWE-284), enabling an attacker to manipulate Kubernetes clusters across tenant boundaries when adding or removing nodes. The flaw affects versions 4.21.0.0 through 4.22.1.0. The Apache Software Foundation has addressed this issue in version 4.22.1.1, which should be applied to remediate the risk.

Potential Impact

Successful exploitation allows an unauthenticated attacker to perform high-impact actions on Kubernetes clusters belonging to other tenants, specifically manipulating cluster nodes. This can lead to unauthorized control over cluster resources, compromising confidentiality and integrity. The CVSS v3.1 score is 9.1 (Critical), reflecting network attack vector, low complexity, no privileges or user interaction required, with high confidentiality and integrity impact, and no availability impact.

Mitigation Recommendations

Users should upgrade Apache CloudStack to version 4.22.1.1 or later, where this vulnerability is fixed. No temporary or alternative mitigations are indicated. Patch status is confirmed by the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-07-14T14:34:44.941Z
State
PUBLISHED

Threat ID: 6a88309facd9273b4907b8a7

Added to database: 08/21/2026, 11:03:59 UTC

Last enriched: 09/10/2026, 18:30:30 UTC

Last updated: 10/05/2026, 18:48:21 UTC

Views: 81

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