CVE-2026-34727
Vikunja ahs a TOTP Two-Factor Authentication Bypass via OIDC Login Path
- State
- Published
- Severity
- 7.4 High
- Published
- Apr 10, 2026
- Updated
- Apr 13, 2026
- Reserved
- Mar 30, 2026
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. This vulnerability is fixed in 2.3.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
vikunjago-vikunja |
|
References
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