This paper defines a new Parasitic Toolchain Attack pattern (MCP-UPD) that assembles legitimate tools into privacy-exfiltrating workflows and reports the first large-scale scan of 12230 MCP tools across 1360 servers revealing systemic vulnerabilities from missing isolation and least-privilege in the
https://modelcontextprotocol.io/docs/getting-started/intro, Accessed: 2025-11-13
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Parasites in the Toolchain: A Large-Scale Analysis of Attacks on the MCP Ecosystem
This paper defines a new Parasitic Toolchain Attack pattern (MCP-UPD) that assembles legitimate tools into privacy-exfiltrating workflows and reports the first large-scale scan of 12230 MCP tools across 1360 servers revealing systemic vulnerabilities from missing isolation and least-privilege in the