Description
Network-AI (npm network-ai) before 5.15.2 contains an origin validation error in McpSseServer._handleRequest in lib/mcp-transport-sse.ts that reflects localhost Origins into Access-Control-Allow-Origin regardless of bind interface. When the server binds a non-loopback address, an attacker page with a localhost Origin visited by a victim can read unauthenticated endpoints like /health cross-origin.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jovancoding | Network-AI | < 5.15.2 | 5.15.2 |
References
- GitHub Security Advisory (GHSA-4pvg-m42h-c3x2) vendor-advisory
- VulnCheck Advisory: Network-AI before 5.15.2 CORS Origin Validation Error in MCP SSE Transport third-party-advisory