CVE-2026-105212

HIGH 7.5

ZITADEL before 3.4.14 and 4.16.2 Account Takeover via Passkey Enrollment

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-287
Vendor	zitadel
Product	zitadel
Published	Oct 4, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

zitadel / zitadel

0 < 4.16.2

zitadel / zitadel

0 < 3.4.14

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/zitadel/zitadel/security/advisories/GHSA-45f2-5q3r-xgg6 vulncheck.com: https://www.vulncheck.com/advisories/zitadel-before-3.4.14-and-4.16.2-account-takeover-via-passkey-enrollment

Credits

🔍 Ibonok IAM-marco 🔍 lucasdodgson livio-a 🔍 dkonis 🔍 FerasTr 🔍 pelegw 🔍 AdamKorcz