high · CVSS v3 8.2 · CVSS v4 8.8
CVE-2026-105210
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 …
Description
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, and enumerate users through discrepant errors.
Scores
- Severity
- high
- CVSS v2
- 8.5
- CVSS v3
- 8.2
- CVSS v4
- 8.8
- EPSS
- —