CVE-2026-33315: Vikunja

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Vikunja Vikunja: before 2.2.0 (fixed in 2.2.0)

Published 2026-03-24. Last modified 2026-06-17.