Improper access control in Apache CloudStack - CVE-2026-62440
Published: August 24, 2026
Vulnerability identifier: #VU144657
CSH Severity: Medium
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62440
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to manipulate Kubernetes clusters across tenants.
The vulnerability exists due to improper access control in the Kubernetes Service plugin when adding and removing cluster nodes. A remote user can send crafted cluster management requests to manipulate Kubernetes clusters across tenants.
Affected software
Apache CloudStack
How to mitigate CVE-2026-62440
Install security update from vendor's website.
Apache CloudStack - addressed in versions 4.20.3.1, 4.22.1.1