CVE-2026-33315 (GCVE-0-2026-33315)

Vulnerability from cvelistv5 – Published: 2026-03-24 14:53 – Updated: 2026-03-24 15:33
VLAI
Title
Vikunja has a 2FA Bypass via Caldav Basic Auth
Summary
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 15:33 UTC
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7885 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
go-vikunja vikunja Affected: < 2.2.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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