What’s Vulnerable › Vulnerabilities

CVE-2026-105212: ZITADEL before 3.4.14 and 4.16.2 Account Takeover via Passkey Enrollment

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-04 · updated 2026-10-29
• Weakness: CWE-287

Description

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.

Affected products

• zitadel: from 4.0.0 before 4.16.2 — fixed in 4.16.2

How to fix

Upgrade to a fixed version: zitadel 4.16.2. Check the vendor advisory for mitigations.

References

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

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