CVE-2026-42856

Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls

HIGH

8.7

CVSS Score

Published: May 11, 2026 at 05:42 PM UTC

Updated: June 17, 2026 at 10:48 AM UTC

1 product affected across 1 vendorNetwork-AI

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Severity

HIGH8.7

Exploit prediction

EPSS 0.5%

SSVC

PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Network-AI · Jovancoding

60%

v < 5.1.3

Affected range stops below 5.1.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitHub_M

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-306

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