{"id":"CVE-2026-105212","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-105212","summary":"ZITADEL 3.x before 3.4.14 and 4.x before 4.16.2 contains an authentication bypass in the hosted Login V1 and Login V2 UIs that accepts passkey or other authenticator enrollment on identify-only…","details":"ZITADEL 3.x before 3.4.14 and 4.x before 4.16.2 contains an authentication bypass in the hosted Login V1 and Login V2 UIs that accepts passkey or other authenticator enrollment on identify-only login sessions, before any primary factor is verified. Unauthenticated attackers knowing only a victim's login name can register an attacker-controlled authenticator and log in as that user, bypassing existing passwords and MFA.","published":"2026-10-04T15:16:32.520","modified":"2026-10-04T15:16:32.637","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/zitadel/zitadel/security/advisories/GHSA-45f2-5q3r-xgg6"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/zitadel-before-3.4.14-and-4.16.2-account-takeover-via-passkey-enrollment"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-04T15:16:32.637"}}