Starting from 2.53.6, 2.54.3, and 2.55.0, Zitadel only required multi factor authentication in case the login policy has either enabled requireMFA or requireMFAForLocalUsers. If a user has set up MFA without this requirement, Zitadel would consider single factor auhtenticated sessions as valid as well and not require multiple factors. Bypassing second authentication factors weakens multifactor authentication and enables attackers to bypass the more secure factor. An attacker can target the TOTP code alone, only six digits, bypassing password verification entirely and potentially compromising accounts with 2FA enabled. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.
Metrics
Affected Vendors & Products
References
History
Tue, 04 Nov 2025 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
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Thu, 30 Oct 2025 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 30 Oct 2025 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zitadel
Zitadel zitadel |
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| Vendors & Products |
Zitadel
Zitadel zitadel |
Wed, 29 Oct 2025 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Starting from 2.53.6, 2.54.3, and 2.55.0, Zitadel only required multi factor authentication in case the login policy has either enabled requireMFA or requireMFAForLocalUsers. If a user has set up MFA without this requirement, Zitadel would consider single factor auhtenticated sessions as valid as well and not require multiple factors. Bypassing second authentication factors weakens multifactor authentication and enables attackers to bypass the more secure factor. An attacker can target the TOTP code alone, only six digits, bypassing password verification entirely and potentially compromising accounts with 2FA enabled. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18. | |
| Title | Zitadel Bypass Second Authentication Factor | |
| Weaknesses | CWE-287 CWE-308 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-10-29T18:43:46.934Z
Updated: 2025-10-30T14:51:19.189Z
Reserved: 2025-10-27T15:26:14.127Z
Link: CVE-2025-64103
Updated: 2025-10-30T14:51:15.580Z
Status : Analyzed
Published: 2025-10-29T19:15:39.067
Modified: 2025-11-04T13:17:27.277
Link: CVE-2025-64103
No data.