Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPServerTransport or SSEServerTransport and has not enabled...

PT-2025-48746

Name of the Vulnerable Software and Affected Versions MCP TypeScript SDK versions prior to 1.24.0 Description The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. If an HTTP-based MCP server is running on localhost without...