{"id":"CVE-2017-1000209","aliases":["EUVD-2022-2390","GHSA-4hxv-95rc-jqg7"],"status":"published","title":"nv-websocket-client allows attackers to spoof SSL/TLS servers via an arbitrary valid certificate","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0066,"percentile":0.51829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2017-11-17T02:00:00Z","modified":"2026-10-20T10:49:50Z","fixes":[{"ecosystem":"Maven","package":"com.neovisionaries:nv-websocket-client","fixed_in":["2.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.neovisionaries:nv-websocket-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.neovisionaries:nv-websocket-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1"}]}],"versions":["1.0","1.1","1.10","1.11","1.12","1.13","1.14","1.15","1.16","1.17","1.18","1.19","1.2","1.20","1.21","1.22","1.23","1.24","1.25","1.26","1.27","1.28","1.29","1.3","1.30","1.31","1.4","1.5","1.6","1.7","1.8","1.9","2.0"]}],"products":[{"vendor":"nv-websocket-client_project","product":"nv-websocket-client"}],"references":[{"url":"https://github.com/TakahikoKawasaki/nv-websocket-client/pull/107","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-1000209","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4hxv-95rc-jqg7"}],"sources":{"cve":[{"id":"CVE-2017-1000209","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2017-11-17T02:00:00Z","modified":"2024-09-16T16:42:44.93Z","updated_at":"2026-11-02T14:33:21.142987Z"}],"euvd":[{"id":"EUVD-2022-2390","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2017-11-17T02:00:00Z","modified":"2024-09-16T16:42:44Z","updated_at":"2026-11-03T00:55:49.07001Z"}],"ghsa":[{"id":"GHSA-4hxv-95rc-jqg7","title":"nv-websocket-client allows attackers to spoof SSL/TLS servers via an arbitrary valid certificate","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2022-05-17T00:18:13Z","modified":"2023-01-29T05:04:08Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:36:25.835323Z"}],"nvd":[{"id":"CVE-2017-1000209","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2017-11-17T02:29:01.097Z","modified":"2026-06-17T00:58:54.73Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:04:08.635428Z"}],"osv":[{"id":"CVE-2017-1000209","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2017-11-17T02:29:01.097Z","modified":"2026-10-20T10:49:50.774708396Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:03.851821Z"},{"id":"GHSA-4hxv-95rc-jqg7","title":"nv-websocket-client allows attackers to spoof SSL/TLS servers via an arbitrary valid certificate","description":"The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.","status":"published","published":"2022-05-17T00:18:13Z","modified":"2023-11-08T03:58:44.169282Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:37.148947Z"}]}}