GHSA-XW59-HVM2-8PJ6 DNS Rebinding Protection Disabled by Default in Model Context Protocol Go SDK for Servers Running on Localhost
The Model Context Protocol MCP Go 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 StreamableHTTPHandler or SSEHandler, a malicious website could exploit DNS rebinding to bypass same-origi...