Is CVE-2026-105212 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-105212?

CVE-2026-105212 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-105212

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.