feiskyer/mcp-kubernetes-server · Security
mcp-kubernetes-server has an OS Command Injection vulnerability
- GHSA ID
- GHSA-4hqq-7q79-932p
- CVE ID
- CVE-2025-59377
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
feiskyer/mcp-kubernetes-server through 0.1.11 allows OS command injection via the /mcp/kubectl endpoint. The handler constructs a shell command with user-supplied arguments and executes it with subprocess using shell=True, enabling injection through shell metacharacters (e.g., ;, &&, $()), even when the server is running in read-only mode.
A remote, unauthenticated attacker can execute arbitrary OS commands on the host, resulting in full compromise of confidentiality, integrity, and availability.
This issue is distinct from mcp-server-kubernetes and from CVE-2025-53355.
CWEs
- CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-59377 ↗
- https://github.com/feiskyer/mcp-kubernetes-server/blob/78957b6c1a3982080cf6fcaac6f6e9014116a71c/src/mcp_kubernetes_server/command.py#L38 ↗
- https://github.com/william31212/CVE-Requests-1896609 ↗
- https://www.tenable.com/cve/CVE-2025-59377 ↗
- https://github.com/advisories/GHSA-4hqq-7q79-932p ↗