{"api_version":"1","generated_at":"2026-04-23T05:59:08+00:00","cve":"CVE-2023-31125","urls":{"html":"https://cve.report/CVE-2023-31125","api":"https://cve.report/api/cve/CVE-2023-31125.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-31125","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-31125"},"summary":{"title":"CVE-2023-31125","description":"Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. An uncaught exception vulnerability was introduced in version 5.1.0 and included in version 4.1.0 of the `socket.io` parent package. Older versions are not impacted. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package, including those who use depending packages like `socket.io`. This issue was fixed in version 6.4.2 of Engine.IO. 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