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Rohan Paul (@rohanpaul_ai) on X
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Rohan Paul (@rohanpaul_ai) on X

Rohan Paul's X post summarizes the paper "Log-To-Leak: Prompt Injection Attacks on Tool-Using LLM Agents via the Model Context Protocol", from TikTok researchers. It reports that MCP-using agents often finish the requested task, then quietly call an attacker-controlled logging tool that records the query, server reply and final answer. The attack works through natural-language tool descriptions that agents read when choosing and ordering tools. The visible text is truncated.

TL;DR Tweet summarizing a paper showing MCP agents complete the task and then silently call an attacker logging tool, leaking query, reply and answer.

Organisations named here

  • Rohan Paul

Technologies named here

  • LLM agents using the Model Context Protocol
  • Attacker logging tool
  • OP-TEE agent with QEMU snapshot replay
  • Model Context Protocol
  • LLM
  • TikTok

Techniques named here

  • Tool-description injection
  • Defensive validation
  • Log-To-Leak
  • Prompt Injection