CVE-2025-66401
Critical · 9.8CVSS
9.8
EPSS
2.2%
Published
Dec 1, 2025
CISA due date
—
The record
MCP Watch is a comprehensive security scanner for Model Context Protocol (MCP) servers. In 0.1.2 and earlier, the MCPScanner class contains a critical Command Injection vulnerability in the cloneRepo method. The application passes the user-supplied githubUrl argument directly to a system shell via execSync without sanitization. This allows an attacker to execute arbitrary commands on the host machine by appending shell metacharacters to the URL.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | mcp-watch | 0 | No fix |
Related vulnerabilities
- GHSA-27m7-ffhq-jqrm MCP Watch has a Critical Command Injection in cloneRepo allows Remote Code Execution… Same vulnerability
- CVE-2026-96376 Improper Neutralization of Special Elements used in an OS Command ("OS Command… CWE-78
- CVE-2026-113732 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113776 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113726 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113725 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113722 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-112943 launch-editor allows users to open files with line numbers in editor from Node.js. CWE-78