Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cloudark | Kubeplus | <= 4.2.0 |
Related Weaknesses (CWE)
References
- https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163ExploitThird Party Advisory
- https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.mdExploitThird Party Advisory
FAQ
What is CVE-2026-29955?
CVE-2026-29955 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 she...
How severe is CVE-2026-29955?
CVE-2026-29955 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-29955?
Check the references section above for vendor advisories and patch information. Affected products include: Cloudark Kubeplus.