NVD HIGH: CVE-2026-105210 — ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains a missing authenticatio...

Sunday, October 4, 2026 at 03:16 PM UTC·Source: NIST NVD

Updated: Monday, October 5, 2026 at 10:00 AM UTC

Executive Summary

ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains a missing authentication flaw in the hosted Login V1 UI, whose second-factor enrollment and initialization handlers act on an identify-only session before any primary factor is verified. Attackers knowing only a victim's login name can enroll attacker-controlled TOTP, OTP-SMS, OTP-Email, or U2F factors, overwrite the verified phone number, a

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2026-105210

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Oct 4, 2026. Verified by: NIST.

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