CVE-2025-53355 mcp-server-kubernetes vulnerable to command injection in several tools
Attackers can inject arbitrary system commands via unsanitized inputs in the Kubernetes MCP server, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-53355?
CVE-2025-53355 is a high-severity command injection vulnerability in Flux159 mcp-server-kubernetes, published on 8 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. A command injection vulnerability exists in the mcp-server-kubernetes MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.execSync, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. This vulnerability is fixed in 2.5.0.
Weakness: CWE-77
Which versions are affected by CVE-2025-53355?
2 open source packages ship an affected version, including mcp-server-kubernetes.
| Package | Affected | Fixed in |
|---|---|---|
mcp-server-kubernetes npm | All versions | 2.5.0 |
mcp-server-kubernetes npm | All versions | 2.5.0 |
How do I fix CVE-2025-53355?
Upgrade mcp-server-kubernetes to 2.5.0 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-53355 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53355 exists.
Sources
Also known as GHSA-gjv4-ghm7-q58q.