{"id":"CVE-2026-42856","summary":"Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls","details":"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.","aliases":["GHSA-fj4g-2p96-q6m3"],"modified":"2026-08-12T03:51:23.252100655Z","published":"2026-05-11T17:42:35.260Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42856.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42856.json"},{"type":"ADVISORY","url":"https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42856"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jovancoding/network-ai","events":[{"introduced":"0"},{"fixed":"b23aedbe5383334076abf9aa4f203b2e86d9e680"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.1.3"}],"source":"AFFECTED_FIELD"}}],"versions":["v5.1.2","v5.1.1","v5.1.0","v5.0.0","v4.15.3","v4.15.2","v4.15.1","v4.15.0","v4.14.0","v4.13.1","v4.13.0","v4.12.1","v4.12.0","v4.11.2","v4.11.1","v4.11.0","v4.10.5","v4.10.4","v4.10.3","v4.10.2","v4.10.1","v4.10.0","v4.9.1","v4.9.0","v4.8.1","v4.8.0","v4.7.1","v4.7.0","v4.6.2","v4.6.1","v4.6.0","v4.5.3","v4.5.2","v4.5.1","v4.5.0","v4.4.3","v4.4.2","v4.4.1","v4.4.0","v4.3.7","v4.3.6","v4.3.5","v4.3.4","v4.3.3","v4.3.2","v4.3.1","v4.3.0","v4.2.0","v4.1.0","v4.0.17","v4.0.16","v4.0.15","v4.0.14","v4.0.13","v4.0.12","v4.0.11","v4.0.10","v4.0.9","v4.0.8","v4.0.7","v4.0.6","v4.0.5","v4.0.4","v4.0.3","v4.0.2","v4.0.1","v4.0.0","v3.9.0","v3.8.0","v3.7.1","v3.7.0","v3.6.2","v3.6.0","v3.5.1","v3.5.0","v3.4.1","v3.4.0","v3.3.11","v3.3.10","v3.3.9","v3.3.8","v3.3.7","v3.3.6","v3.3.5","v3.3.4","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.11","v3.2.10","v3.2.9","v3.2.8","v3.2.7","v3.2.6","v3.2.5","v3.2.4","v3.2.3","v3.2.2","v3.2.1","v3.2.0","v3.1.3","v3.1.2","v3.1.0","v3.0.3","v3.0.2","v3.0.1","v3.0.0","v2.0.0","V1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42856.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}