AUGUST 4, 2026
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Case File

CVE-2025-66401

CRITICAL · CVSS 9.8 EPSS 2.26% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-01 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects GitHub. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-66401
Severity
CRITICAL
CVSS
9.8
EPSS
2.26%
GitHub

Original NVD 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.