CVE-2026-33668: Vikunja

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue accessing the API and syncing data. Version 2.2.1 patches the issue.

Affected products

• Vikunja Vikunja: from 0.18.0, before 2.2.1 (fixed in 2.2.1)

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