CyberRota Analysis
AI-GeneratedThe MCP Python SDK prior to version 1.28.1 is vulnerable due to inadequate validation of Host and Origin headers in the deprecated WebSocket transport, allowing unauthorized origins to connect to applications. This flaw could lead to unauthorized access and potential exploitation of the application. Developers and organizations utilizing the MCP SDK should prioritize upgrading to version 1.28.1 to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to 1.28.1, the deprecated mcp.server.websocket.websocket_server transport accepted WebSocket handshakes without applying Host or Origin header validation, leaving no SDK-level way to restrict which origins could connect to applications that exposed that transport. This issue is fixed in version 1.28.1.
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