CVE-2026-29955: Cloudark Kubeplus

High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days.

The `/registercrd` endpoint in KubePlus 4.14 in the kubeconfiggenerator component is vulnerable to command injection. The component uses `subprocess.Popen()` with `shell=True` parameter to execute shell commands, and the user-supplied `chartName` parameter is directly concatenated into the command string without any sanitization or validation. An attacker can inject arbitrary shell commands by crafting a malicious `chartName` parameter value.

Affected products

• Cloudark Kubeplus: up to and including 4.2.0

Published 2026-04-13. Last modified 2026-06-17.