CVE-2026-42856CWE-306

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

High · published May 11, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-05-11T17:42Z
EPSS history
Timeline
  • 11 MAY 17:42Z
    Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls
    cvelistv5