{"id":"CVE-2026-40608","state":"PUBLISHED","title":"Next AI Draw.io: Unbounded HTTP Body — Denial of Service","description":"Next AI Draw.io is a next.js web application that integrates AI capabilities with draw.io diagrams. Prior to 0.4.15, the embedded HTTP sidecar contains three POST handlers (/api/state, /api/restore, and /api/history-svg) that process incoming requests by accumulating the entire request body into a JavaScript string without any size limitations. Node.js buffers the entire payload in the V8 heap. Sending a sufficiently large body (e.g., 500 MiB or more) will exhaust the process heap memory, leading to an Out-of-Memory (OOM) error that crashes the MCP server. This vulnerability is fixed in 0.4.15.","publishedAt":"2026-04-21T17:56:35.046Z","updatedAt":"2026-04-21T18:36:25.819Z","severity":{"score":6.2,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["DayuanJiang next-ai-draw-io"],"affected":[{"vendor":"DayuanJiang","product":"next-ai-draw-io","versions":[{"version":"< 0.4.15","status":"affected"}]}],"references":["https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378","https://github.com/DayuanJiang/next-ai-draw-io/commit/31819f413cc4b329a1cb81e5fccd0cd98c1fd665"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40608.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40608","state":"PUBLISHED","datePublished":"2026-04-21T17:56:35.046Z","dateUpdated":"2026-04-21T18:36:25.819Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-14T14:07:59.642Z"},"containers":{"cna":{"title":"Next AI Draw.io: Unbounded HTTP Body — Denial of Service","descriptions":[{"lang":"en","value":"Next AI Draw.io is a next.js web application that integrates AI capabilities with draw.io diagrams. Prior to 0.4.15, the embedded HTTP sidecar contains three POST handlers (/api/state, /api/restore, and /api/history-svg) that process incoming requests by accumulating the entire request body into a JavaScript string without any size limitations. Node.js buffers the entire payload in the V8 heap. Sending a sufficiently large body (e.g., 500 MiB or more) will exhaust the process heap memory, leading to an Out-of-Memory (OOM) error that crashes the MCP server. This vulnerability is fixed in 0.4.15."}],"affected":[{"vendor":"DayuanJiang","product":"next-ai-draw-io","versions":[{"version":"< 0.4.15","status":"affected"}]}],"references":[{"url":"https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378","name":"https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/DayuanJiang/next-ai-draw-io/commit/31819f413cc4b329a1cb81e5fccd0cd98c1fd665","name":"https://github.com/DayuanJiang/next-ai-draw-io/commit/31819f413cc4b329a1cb81e5fccd0cd98c1fd665","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.2,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-21T17:56:35.046Z"},"source":{"advisory":"GHSA-9q7h-wgfw-p378","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T18:36:21.833743Z","id":"CVE-2026-40608","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":"2026-04-21T18:36:25.819Z"}}]}}}