{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73565", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-12T20:53:46.381Z", "datePublished": "2026-08-13T17:37:28.579Z", "dateUpdated": "2026-08-14T16:45:25.711Z"}, "containers": {"cna": {"title": "@hono/node-server: Unauthenticated memory-leak DoS via aborted WebSocket handshake", "problemTypes": [{"descriptions": [{"cweId": "CWE-401", "lang": "en", "description": "CWE-401: Missing Release of Memory after Effective Lifetime", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/honojs/node-server/security/advisories/GHSA-9mqv-5hh9-4cgg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/honojs/node-server/security/advisories/GHSA-9mqv-5hh9-4cgg"}, {"name": "https://github.com/honojs/node-server/commit/3a21938c418340e980cb7ffa88e78369f78392d1", "tags": ["x_refsource_MISC"], "url": "https://github.com/honojs/node-server/commit/3a21938c418340e980cb7ffa88e78369f78392d1"}, {"name": "https://github.com/honojs/node-server/releases/tag/v2.0.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/honojs/node-server/releases/tag/v2.0.10"}], "affected": [{"vendor": "honojs", "product": "node-server", "versions": [{"version": ">= 2.0.0, < 2.0.10", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-13T17:37:28.579Z"}, "descriptions": [{"lang": "en", "value": "@hono/node-server allows running the Hono application on Node.js. From 2.0.0 until 2.0.10, a WebSocket upgrade request to an upgradeWebSocket route with a missing or malformed Sec-WebSocket-Key header causes src/websocket.ts to retain the request's IncomingMessage in waiterMap and leave waitForWebSocket pending because ws.handleUpgrade emits no connection event. The aborted handshake therefore has no cleanup path, allowing an unauthenticated attacker to flood a public route, cause unbounded memory growth, and eventually make the service unavailable. This issue is fixed in version 2.0.10."}], "source": {"advisory": "GHSA-9mqv-5hh9-4cgg", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-14T16:45:01.113756Z", "id": "CVE-2026-73565", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-14T16:45:25.711Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "node-server", "vendor": "honojs", "versions": [{"status": "affected", "version": ">= 2.0.0, < 2.0.10"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "@hono/node-server allows running the Hono application on Node.js. From 2.0.0 until 2.0.10, a WebSocket upgrade request to an upgradeWebSocket route with a missing or malformed Sec-WebSocket-Key header causes src/websocket.ts to retain the request's IncomingMessage in waiterMap and leave waitForWebSocket pending because ws.handleUpgrade emits no connection event. The aborted handshake therefore has no cleanup path, allowing an unauthenticated attacker to flood a public route, cause unbounded memory growth, and eventually make the service unavailable. This issue is fixed in version 2.0.10."}], "id": "CVE-2026-73565", "lastModified": "2026-08-14T17:20:33.593", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73565", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-14T16:45:01.113756Z", "version": "2.0.3"}}]}, "published": "2026-08-13T18:18:19.103", "references": [{"source": "[email protected]", "url": "https://github.com/honojs/node-server/commit/3a21938c418340e980cb7ffa88e78369f78392d1"}, {"source": "[email protected]", "url": "https://github.com/honojs/node-server/releases/tag/v2.0.10"}, {"source": "[email protected]", "url": "https://github.com/honojs/node-server/security/advisories/GHSA-9mqv-5hh9-4cgg"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}, {"lang": "en", "value": "CWE-770"}], "source": "[email protected]", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0,2.0.10)"}}], "enrichment": {"confidence": 94.0, "confidence_source": "matching", "scores": [{"score": 94.0, "source": "matching"}]}, "original": {"product": "node-server", "source": "cna", "vendor": "honojs"}, "product": "node-server", "vendor": "hono"}], "created": "2026-08-13T18:45:04.404796+00:00", "updated": "2026-08-14T10:00:03.914422+00:00", "vendors": ["hono", "hono$PRODUCT$node-server"]}