critical9.8
CVE-2025-59377
mcp-kubernetes-server has an OS Command Injection vulnerability
Impact
`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**.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | mcp-kubernetes-server | <= 0.1.11 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Feisky | Mcp-Kubernetes-Server | through 0.1.11 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/feiskyer/mcp-kubernetes-server/blob/78957b6c1a3982080cf6fcaac6f6e9014116a71c/src/mcp_kubernetes_server/command.py#L38
- https://github.com/william31212/CVE-Requests-1896609
- https://github.com/advisories/GHSA-4hqq-7q79-932p
- https://nvd.nist.gov/vuln/detail/CVE-2025-59377
- https://www.tenable.com/cve/CVE-2025-59377