{"id":"CVE-2026-126454","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-126454","summary":"OpenEMR before 8.5.0 lacks rate limiting or lockout on TOTP submission, allowing attackers with a valid password to brute-force the 6-digit MFA code. Attackers can script repeated POST…","details":"OpenEMR before 8.5.0 lacks rate limiting or lockout on TOTP submission, allowing attackers with a valid password to brute-force the 6-digit MFA code. Attackers can script repeated POST requests to main_screen.php or the OAuth2 authorization flow with re-submitted hidden credentials to bypass two-factor authentication.","published":"2026-11-13T10:17:53.507","modified":"2026-11-13T10:17:53.627","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/openemr/openemr/security/advisories/GHSA-rp7c-25mm-8g74"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openemr-before-8.5.0-totp-brute-force-via-main-screen-php-and-oauth2"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-13T10:17:53.627"}}