{"id":"CVE-2026-105212","title":"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 i…","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 login sessions, before any primary factor i…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-287"],"vendor":"zitadel","product":"zitadel","affected":["zitadel < 4.16.2","zitadel < 3.4.14"],"published":"2026-10-04","updated":"2026-10-04","sourceUpdated":"2026-10-04T15:16:32.637","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105212","references":[{"url":"https://github.com/zitadel/zitadel/security/advisories/GHSA-45f2-5q3r-xgg6","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/zitadel-before-3.4.14-and-4.16.2-account-takeover-via-passkey-enrollment","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-04T15:00:34.389Z","slug":"CVE-2026-105212","body":"## Overview\n\nZITADEL 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}