TLDR Tech / InfoSec
We Scanned 1,808 MCP Servers. 66% Had Security Findings (14 minute read)
MCP servers have rapidly become the default integration layer for AI agents, but large‑scale scanning of 1,808 servers shows that 66% expose security issues. The riskiest patterns are code execution, toxic cross‑server data flows, and tool‑description prompt injection, which enable data exfiltration, supply‑chain attacks, and even zero‑click RCE via clients like IDEs and desktop agents. Real incidents demonstrate that MCP01–MCP06‑style issues are already being exploited in production. Security‑minded teams should treat MCP as a live attack surface: check servers against the MCP Security Registry, tightly scope tokens, test system prompts, and rigorously review tool and config changes before granting autonomous access.
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