{"id":"CVE-2026-61630","published":"2026-09-21T15:17:30.650","lastModified":"2026-09-21T21:17:06.997","description":"nginx ignition is a user interface for the nginx web server. In versions 2.33.0 through 2.35.0, any user that has enabled the OTP 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.35.1 patches the issue.","cvssScore":4.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","cwes":["CWE-287"],"vendors":[],"products":[],"references":[{"url":"https://github.com/lucasdillmann/nginx-ignition/commit/1cbfae0296f1b186158f5a294ec484060e00102e","tags":[]},{"url":"https://github.com/lucasdillmann/nginx-ignition/commit/8d35e1eb5dd6a40fef94a45511fe08b0603af107","tags":[]},{"url":"https://github.com/lucasdillmann/nginx-ignition/security/advisories/GHSA-hf33-q6cf-c66f","tags":[]}],"exploitRefs":[{"url":"https://github.com/lucasdillmann/nginx-ignition/commit/1cbfae0296f1b186158f5a294ec484060e00102e","tags":[]},{"url":"https://github.com/lucasdillmann/nginx-ignition/commit/8d35e1eb5dd6a40fef94a45511fe08b0603af107","tags":[]},{"url":"https://github.com/lucasdillmann/nginx-ignition/security/advisories/GHSA-hf33-q6cf-c66f","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows any user with OTP 2FA enabled to reuse their TOTP during a 30-second window, potentially leading to unauthorized access.","exploitability":"Exploitation requires a user who has enabled OTP 2FA and can manipulate the timing of their authentication within the validity window; moderately difficult.","blast_radius":"If exploited, this could result in unauthorized access for affected users, impacting data confidentiality but not availability or integrity.","remediation":"Update to nginx ignition version 2.35.1 immediately to patch the issue.","tags":["auth-bypass","web","otp","security-update"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-22T06:34:54.725Z"}}