{"id":"CVE-2026-82470","aliases":["DEBIAN-CVE-2026-82470","EUVD-2026-68127","GHSA-frwg-xgr9-44pg","GHSA-hhvg-6qmv-58vc","UBUNTU-CVE-2026-82470"],"status":"published","title":"Rodauth before 2.47.0 TOTP Code Reuse via Drift Window","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00408,"percentile":0.35559,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-294"],"published":"2026-08-29T16:35:31Z","modified":"2026-10-28T02:30:55Z","fixes":[{"ecosystem":"Debian:14","package":"ruby-rodauth","fixed_in":["2.47.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"ruby-rodauth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.47.0-1"}]}],"versions":["2.42.0-1","2.42.0-2","2.43.0-1","2.44.0-1","2.45.0-1","2.46.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ruby-rodauth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.43.0-1","2.44.0-1","2.45.0-1"]}],"products":[{"vendor":"jeremyevans","product":"rodauth"}],"references":[{"url":"https://github.com/jeremyevans/rodauth/commit/3bfd0a11bae70935b1944e71dbe787dd0c3a62ad","tags":["patch","fix","report"]},{"url":"https://github.com/jeremyevans/rodauth/security/advisories/GHSA-hhvg-6qmv-58vc","tags":["vendor-advisory","advisory","report"]},{"url":"https://github.com/jeremyevans/rodauth","tags":["product","package","report"]},{"url":"https://www.vulncheck.com/advisories/rodauth-before-2.47.0-totp-code-reuse-via-drift-window","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82470","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-frwg-xgr9-44pg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82470.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-82470","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-82470","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-82470","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-82470","title":"Rodauth before 2.47.0 TOTP Code Reuse via Drift Window","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T16:35:31.777Z","modified":"2026-08-31T18:16:06.572Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T13:40:46.161838Z"}],"euvd":[{"id":"EUVD-2026-68127","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T16:35:31Z","modified":"2026-08-31T18:16:06Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:20.215322Z"}],"ghsa":[{"id":"GHSA-frwg-xgr9-44pg","title":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp...","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T18:31:31Z","modified":"2026-08-29T18:31:38Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T15:11:09.499721Z"}],"nvd":[{"id":"CVE-2026-82470","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T17:17:59.49Z","modified":"2026-09-11T18:26:53.61Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T14:12:42.691315Z"}],"osv":[{"id":"CVE-2026-82470","title":"Rodauth before 2.47.0 TOTP Code Reuse via Drift Window","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T16:35:31.777Z","modified":"2026-10-28T02:30:55.557904445Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T15:45:18.131258Z"},{"id":"DEBIAN-CVE-2026-82470","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T17:17:59.49Z","modified":"2026-10-01T03:03:51.505602323Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:46:04.577397Z"},{"id":"UBUNTU-CVE-2026-82470","description":"Rodauth before 2.47.0 contains a time-based one-time password reuse vulnerability in the otp feature that fails to track the last accepted code timestamp. Attackers who observe a valid TOTP code can replay it during the drift window to bypass the second authentication factor.","status":"published","published":"2026-08-29T17:17:00Z","modified":"2026-10-17T13:01:11.583429714Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:57:22.213888Z"}]}}