Security for the protocol Anthropic refused to secure.
AEGIBIT MCP Shield is an open-source security scanner and runtime firewall for Model Context Protocol servers — built after the April 2026 OX disclosure exposed 200,000+ servers to remote code execution.
"By design. Sanitization is the developer's responsibility." — Anthropic, on the MCP RCE vulnerability, April 2026
We took that seriously.
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