GHSA-r78r-rwrf-rjwp: Network-AI: CVE-2026-46701 fix incomplete — empty default secret still authorizes all requests

Summary

The fix for CVE-2026-46701 in Network-AI, npm package network-ai, is incomplete on the latest v5.7.1. The 5.4.5 release restricted Access-Control-Allow-Origin to localhost origins, but the SSE MCP server still defaults to an empty secret, and _isAuthorized() returns true when the secret is empty. Any non-browser caller can therefore invoke all 22 MCP tools without credentials, including config_set, agent_spawn, blackboard_write and token_* tools.

Mitigation

Implement the advisory's remediation #1: refuse to start SSE mode with an empty secret (unless --stdio), and/or make _isAuthorized fail closed so an empty configured secret denies requests. The CORS allowlist alone does not authenticate non-browser callers.

Topics

• Model Context Protocol

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