KubePlus 4.14 kubeconfiggenerator /registercrd subprocess.Popen chartName command injection

Summaryinfo

A vulnerability was found in KubePlus 4.14. It has been declared as critical. Affected is the function subprocess.Popen of the file /registercrd of the component kubeconfiggenerator. Executing a manipulation of the argument chartName can lead to command injection. This vulnerability is tracked as CVE-2026-29955. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in KubePlus 4.14. This vulnerability affects the function subprocess.Popen of the file /registercrd of the component kubeconfiggenerator. The manipulation of the argument chartName with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at gist.github.com. This vulnerability was named CVE-2026-29955 since 03/04/2026. The exploitation appears to be easy. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/13/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• KubePlus

Version

• 4.14

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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