Technology

Anthropic's Model Context Protocol includes a critical remote code execution vulnerability — newly discovered exploit puts 200,000 AI servers at risk

Source

Tom's Hardware

Published

Apr 22, 2026

TL;DR

AI Generated

Security researchers discovered a critical remote code execution vulnerability in Anthropic's Model Context Protocol (MCP), affecting SDKs in Python, TypeScript, Java, and Rust. This flaw puts up to 200,000 AI servers at risk across a supply chain with over 150 million downloads. Despite the exposure, Anthropic has declined to patch the protocol, stating that the behavior was expected. OX Security's research team identified multiple exploitation methods and recommended protocol-level fixes to Anthropic, which were reportedly declined. The vulnerability comes shortly after Anthropic launched Claude Mythos, a model aimed at identifying security vulnerabilities in other software, prompting calls for the company to address its own infrastructure vulnerabilities.

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Anthropic's Model Context Protocol includes a critical remote code execution vulnerability — newly discovered exploit puts 200,000 AI servers at risk

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Anthropic's Model Context Protocol includes a critical remote code execution vulnerability — newly discovered exploit puts 200,000 AI servers at risk

TL;DR

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