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CVE-2025-64103

Zitadel Bypass Second Authentication Factor

Published: Oct 29, 2025Updated: Nov 4, 2025 Sources: CVE List NVD GHSACWE-287
9.8CRITICAL
NVD MITRE
EPSS Score
0.3%
Top 74.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287CWE-308

Affected Products

Go
package-ecosystem
github.com/zitadel/zitadel/v2
OSS Libraries
github.com/zitadel/zitadel
OSS Libraries
zitadel
commercialaka zitadel identity
zitadelSaaS
Security Products / identity-access-mgmt

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/zitadel/zitadel/security/advisories/GHSA-cfjq-28r2-4jv5
github.com
https://github.com/zitadel/zitadel/commit/b284f8474eed0cba531905101619e7ae7963156b
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-64103
nvd.nist.gov
and 2 more references View all →

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