HarborGuard / CVE
Back to search
HIGHCVE-2026-42856Published Modified CNA GitHub_M

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

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.

Metrics

CVSS v4.0
8.7
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • Jovancoding / Network-AI
    < 5.1.3
CVSS 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
CVE-2026-42856: Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls | HarborGuard CVE