CVE-2026-46701
Network-AI: Unauthenticated Cross-Origin MCP Tool Invocation via Empty Default Secret
Impact
Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.4.5, the MCP SSE server defaults to an empty secret (`process.env['NETWORK_AI_MCP_SECRET'] ?? ''` at `bin/mcp-server.ts:89`), which causes `_isAuthorized` (`lib/mcp-transport-sse.ts:254`) to return `true` unconditionally for every request — no `Authorization` header is required. Simultaneously, `_handleRequest` sets `Access-Control-Allow-Origin: *` (`lib/mcp-transport-sse.ts:272`) on every response, so a cross-origin browser fetch can read the result without restriction. An unauthenticated attacker who can lure a user to a malicious web page can invoke all 22 exposed MCP tools — including `config_set`, `agent_spawn`, and `blackboard_write` — against a default-configured localhost server. Version 5.4.5 patches the issue.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | network-ai | <= 5.4.4 | 5.4.5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Network-Ai | Network-Ai | before 5.4.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-j3vx-cx2r-pvg8
- https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-j3vx-cx2r-pvg8
- https://github.com/Jovancoding/Network-AI/commit/dc5048112283f3f4eb6c06dd2bf5aa93ef9339be
- https://github.com/Jovancoding/Network-AI/releases/tag/v5.4.5