{"id":"CVE-2023-31125","summary":"Uncaught exception in engine.io","details":"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. There is no known workaround except upgrading to a safe version.","aliases":["GHSA-q9mw-68c2-j6m5"],"modified":"2026-04-10T04:57:32.437397Z","published":"2023-05-08T20:21:01.341Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-248"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/31xxx/CVE-2023-31125.json"},"references":[{"type":"WEB","url":"https://github.com/socketio/engine.io/releases/tag/6.4.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/31xxx/CVE-2023-31125.json"},{"type":"ADVISORY","url":"https://github.com/socketio/engine.io/security/advisories/GHSA-q9mw-68c2-j6m5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31125"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230622-0002/"},{"type":"FIX","url":"https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/socketio/engine.io","events":[{"introduced":"8c9bd9262f1c664722194c8c321cba947cf0bf54"},{"fixed":"95e215387c589025dde3982865bf8c862d049469"}]}],"versions":["5.1.0","5.1.1","5.2.0","6.0.0","6.1.0","6.1.1","6.1.2","6.1.3","6.2.0","6.2.1","6.3.0","6.3.1","6.4.0","6.4.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-31125.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}