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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 04 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | ZITADEL before 4.17.1 Unauthenticated MFA Enrollment via Login V1 Init Handlers | |
| First Time appeared |
Zitadel
Zitadel zitadel |
|
| Weaknesses | CWE-287 | |
| CPEs | cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zitadel
Zitadel zitadel |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-04T13:10:03.949Z
Reserved: 2026-10-04T13:02:21.188Z
Link: CVE-2026-105210
No data.
Status : Deferred
Published: 2026-10-04T15:16:32.170
Modified: 2026-10-04T15:16:32.287
Link: CVE-2026-105210
No data.
OpenCVE Enrichment
Updated: 2026-10-04T16:30:15Z
Weaknesses