Anthropic’s MCP Design Flaw: How a Protocol-Level Vulnerability Enables Remote Code Execution at Scale
A critical architectural flaw in Anthropic’s Model Context Protocol (MCP) ecosystem has exposed a vast number of downstream systems to remote code execution (RCE) risks. Researchers at OX Security found the issue embedded across official MCP SDKs for Python, TypeScript, Java, and Rust — meaning developers building on MCP inherit the vulnerability by design rather than through a simple coding bug. The implications are severe: arbitrary command execution, data exfiltration,…