Content-type: text/html Downes.ca ~ Stephen's Web ~ MCP Security Notification: Tool Poisoning Attacks

Stephen Downes

Knowledge, Learning, Community

It took this long to find a problem in model context protocol (MCP) servers. "A Tool Poisoning Attack occurs when malicious instructions are embedded within MCP tool descriptions that are invisible to users but visible to AI models." The page shows how a local MCP server could be prompted to extract private keys and send them to an attacker's email address.

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Stephen Downes Stephen Downes, Casselman, Canada
stephen@downes.ca

Copyright 2025
Last Updated: Apr 06, 2025 08:09 a.m.

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