{"api_version":"1","generated_at":"2026-08-13T22:37:54+00:00","cve":"CVE-2026-73565","urls":{"html":"https://cve.report/CVE-2026-73565","api":"https://cve.report/api/cve/CVE-2026-73565.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-73565","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-73565"},"summary":{"title":"@hono/node-server: Unauthenticated memory-leak DoS via aborted WebSocket handshake","description":"@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. 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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.","Type":"Description","Title":"@hono/node-server: Unauthenticated memory-leak DoS via aborted W"}]}}}