{"id":"CVE-2021-38299","aliases":["EUVD-2021-1997","GHSA-6whf-q6p5-84wg"],"status":"published","title":"Improper Access Control in Webauthn Framework","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.018,"percentile":0.78783,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-863"],"published":"2021-09-27T05:55:51Z","modified":"2026-11-05T19:59:32Z","fixes":[{"ecosystem":"Packagist","package":"web-auth/webauthn-framework","fixed_in":["3.3.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"web-auth/webauthn-framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"fixed":"3.3.4"}]}]},{"source":"osv","ecosystem":"Packagist","package":"web-auth/webauthn-framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"fixed":"3.3.4"}]}],"versions":["v3.3.0","v3.3.1","v3.3.2","v3.3.3"]}],"products":[{"vendor":"spomky-labs","product":"webauthn_framework"},{"vendor":"spomky-labs","product":"webauthn_framwork"}],"references":[{"url":"https://github.com/web-auth/webauthn-framework/releases","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2021-1-fehlende-ueberpruefung-von-user-presence-in-webauthn-framework/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38299","tags":["advisory"]},{"url":"https://github.com/web-auth/webauthn-framework/commit/572e239c5702667ca52487faf861abc768a46308","tags":["web"]},{"url":"https://github.com/web-auth/webauthn-framework/releases/tag/v3.3.4","tags":["web"]},{"url":"https://github.com/advisories/GHSA-6whf-q6p5-84wg"},{"url":"https://github.com/web-auth/webauthn-framework","tags":["package"]},{"url":"https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2021-1-fehlende-ueberpruefung-von-user-presence-in-webauthn-framework","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-38299","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-27T05:55:51Z","modified":"2024-08-04T01:37:16.357Z","updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-1997","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-27T05:55:51Z","modified":"2024-08-04T01:37:16Z","updated_at":"2026-11-03T03:24:25.244479Z"}],"ghsa":[{"id":"GHSA-6whf-q6p5-84wg","title":"Improper Access Control in Webauthn Framework","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-29T17:16:07Z","modified":"2023-02-01T05:06:20Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:36:38.281533Z"}],"nvd":[{"id":"CVE-2021-38299","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-27T06:15:07.91Z","modified":"2026-11-05T19:59:32.573Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-05T21:56:34.63653Z"}],"osv":[{"id":"CVE-2021-38299","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-27T06:15:07.91Z","modified":"2026-11-07T10:47:14.297594053Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-07T03:07:46.376193Z"},{"id":"GHSA-6whf-q6p5-84wg","title":"Improper Access Control in Webauthn Framework","description":"Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.","status":"published","published":"2021-09-29T17:16:07Z","modified":"2024-02-17T05:26:54.961182Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:46:40.308826Z"}]}}