A template for deploying a Model Context Protocol server on Cloudflare Workers featuring OAuth authentication and SSE transport. It enables secure remote access to MCP tools from clients like Claude Desktop through a local proxy.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)
Hono's flaw in URL path parsing could cause path confusion
[](https://m8ven.ai/mcp/mantrakp04-remote-mcp-server-q2puhv)