CVE-2026-29955

Name: CVE-2026-29955
Creator: NVD / NIST
Published: 2026-04-13T19:16:39.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.18%

Last modified Jun 17, 2026

CVE-2026-29955 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 2.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.18%

80.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Cloudark	Kubeplus	<= 4.2.0

References

https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163Exploit, Third Party Advisory
https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.mdExploit, Third Party Advisory

Timeline

Published: Apr 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-29955?

How severe is CVE-2026-29955?

CVE-2026-29955 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-29955?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-29955?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST