GitHub MCP Security Vulnerability Exposed: How Malicious Issues Compromise Private Repositories

GitHub MCP Security Vulnerability Explained: How Malicious Issue Injection Steals Private Repository Data A critical security vulnerability recently discovered in GitHub’s platform demands urgent attention from developers worldwide. This flaw affects users of the GitHub MCP integration service (officially maintained by GitHub with 14k stars), allowing attackers to exploit AI development assistants through malicious Issues in public repositories, leading to unauthorized access to private repository data. This in-depth analysis reveals the vulnerability’s mechanics and provides actionable protection strategies. The Core Vulnerability: When AI Assistants Become Attack Vectors Characteristics of the New Attack Pattern This security flaw, termed “Toxic Agent Flows,” …