CVE-2026-34727
HIGHVikunja ahs a TOTP Two-Factor Authentication Bypass via OIDC Login Path
Title source: cnaDescription
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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8jvc-mcx6-r4cg
Scores
CVSS v3
7.4
EPSS
0.0028
EPSS Percentile
19.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-287
Status
published
Products (3)
code.vikunja.io/api
0 - 2.3.0Go
go-vikunja/vikunja
< 2.3.0
vikunja/vikunja
< 2.3.0
Published
Apr 10, 2026
Tracked Since
Apr 10, 2026