RCE in Cloudark Kubeplus
CVE-2026-29955
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.029 · change: +0.007
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163 (Exploit, Third Party Advisory)
- github.com/b0b0haha/CVE-2026-29955/blob/main/README.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-29955?
- CVE-2026-29955 is a high-severity vulnerability in Cloudark Kubeplus, classified under Code Injection. CVSS score: 8.8/10. Published 2026-04-13.
- How severe is CVE-2026-29955?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-29955 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.