{"id":"CVE-2026-127131","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-127131","summary":"SOGo before 5.12.13 contains a missing rate limiting vulnerability in its web login TOTP verification that allows attackers who already possess a victim's password to brute-force the…","details":"SOGo before 5.12.13 contains a missing rate limiting vulnerability in its web login TOTP verification that allows attackers who already possess a victim's password to brute-force the second-factor code without triggering any lockout. Attackers can send repeated POST requests to /SOGo/connect with wrong verification codes at high speed since failed TOTP attempts never increment the failed-login counter and SOGoMaximumFailedLoginCount does not apply, enabling indefinite guessing across 30-second code windows to bypass two-factor authentication.","published":"2026-11-12T15:56:31.256Z","modified":"2026-11-12T15:56:31.256Z","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://github.com/Alinto/sogo/releases/tag/SOGo-5.12.13"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/sogo-before-missing-rate-limiting-on-totp-verification"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-12T15:56:31.256Z"}}