{"id":"CVE-2026-42856","state":"PUBLISHED","title":"Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls","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.","publishedAt":"2026-05-11T17:42:35.260Z","updatedAt":"2026-05-11T18:33:59.839Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"GitHub_M"},"assigner":"GitHub_M","products":["Jovancoding Network-AI"],"affected":[{"vendor":"Jovancoding","product":"Network-AI","versions":[{"version":"< 5.1.3","status":"affected"}]}],"references":["https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42856.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42856","state":"PUBLISHED","datePublished":"2026-05-11T17:42:35.260Z","dateUpdated":"2026-05-11T18:33:59.839Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-30T16:44:48.379Z"},"containers":{"cna":{"title":"Network-AI: Missing authentication on MCP HTTP endpoint allows unauthenticated privileged tool calls","descriptions":[{"lang":"en","value":"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":[{"vendor":"Jovancoding","product":"Network-AI","versions":[{"version":"< 5.1.3","status":"affected"}]}],"references":[{"url":"https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3","name":"https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306: Missing Authentication for Critical Function","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-11T17:42:35.260Z"},"source":{"advisory":"GHSA-fj4g-2p96-q6m3","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-fj4g-2p96-q6m3","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-11T18:33:09.155626Z","id":"CVE-2026-42856","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-11T18:33:59.839Z"}}]}}}