CVE-2025-64103: Zitadel Bypass Second Authentication Factor
Affected: zitadel · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 29% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- zitadel · zitadel>= 4.0.0-rc.1, < 4.6.0; >= 3.0.0-rc.1, < 3.4.3; >= 2.55.0, < 2.71.18; >= 2.54.3, <= 2.54.10; >= 2.53.6, <= 2.53.9
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- zitadel
- Published
- October 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-64103 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.