CVE-2025-53372 node-code-sandbox-mcp has a Sandbox Escape via Command Injection
Attackers can execute arbitrary system commands on the host by injecting input into the MCP server, bypassing Docker sandbox protections.
- 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-2025-53372?
CVE-2025-53372 is a high-severity command injection vulnerability in alfonsograziano node-code-sandbox-mcp, 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
node-code-sandbox-mcp is a Node.js–based Model Context Protocol server that spins up disposable Docker containers to execute arbitrary JavaScript. Prior to 1.3.0, a command injection vulnerability exists in the node-code-sandbox-mcp 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 on the host machine, bypassing the sandbox protection of running code inside docker. This vulnerability is fixed in 1.3.0.
Weakness: CWE-77
Which versions are affected by CVE-2025-53372?
2 open source packages ship an affected version, including node-code-sandbox-mcp.
| Package | Affected | Fixed in |
|---|---|---|
node-code-sandbox-mcp npm | All versions | 1.3.0 |
node-code-sandbox-mcp npm | All versions | 1.3.0 |
How do I fix CVE-2025-53372?
Upgrade node-code-sandbox-mcp to 1.3.0 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-53372 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53372 exists.
Sources
Also known as GHSA-5w57-2ccq-8w95.