Command Injection Affecting mcp-watch package, versions <0.1.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-MCPWATCH-14157220
- published2 Dec 2025
- disclosed1 Dec 2025
- creditViral Vaghela
Introduced: 1 Dec 2025
NewCVE-2025-66401 (opens in a new tab)How to fix?
Upgrade mcp-watch to version 0.1.3 or higher.
Overview
mcp-watch is a Security scanner for Model Context Protocol (MCP) servers - detect vulnerabilities and security issues
Affected versions of this package are vulnerable to Command Injection via the cloneRepo function in the /scanner/McpScanner.ts file. An attacker can execute arbitrary commands on the host machine by supplying a crafted URL containing shell metacharacters.