Echo MCP
A lightweight server that enables AI agents to emit and validate structured messages through MCP tool call returns. It facilitates reliable programmatic consumption of agent outputs by echoing validated payloads against predefined schemas.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE
React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets
React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint
React Router vulnerable to Denial of Service via reflected user input in single-fetch
process.env. You'll be asked to provide them before it can run.BUILTIN_SCHEMAS_CONFIGMCP_URLPORT[](https://m8ven.ai/mcp/zenlixai-echo-mcp-0risa3)