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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-8jvc-mcx6-r4cg Vikunja has TOTP Two-Factor Authentication Bypass via OIDC Login Path
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 10 Apr 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title Vikunja ahs a TOTP Two-Factor Authentication Bypass via OIDC Login Path
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-10T15:45:30.662Z

Reserved: 2026-03-30T18:41:20.753Z

Link: CVE-2026-34727

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-10T16:16:31.853

Modified: 2026-04-10T16:16:31.853

Link: CVE-2026-34727

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses