CVE-2025-66401 – MCP Watch has a Critical Command Injection in cloneRepo allows Remote Code Execution (RCE) via malicious URL

CVE ID : CVE-2025-66401

Published : Dec. 1, 2025, 11:15 p.m. | 1 hour, 9 minutes ago

Description : 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.

Severity: 9.8 | CRITICAL

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