CVE-2026-33676: Vikunja

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.

Affected products

• Vikunja Vikunja: before 2.2.1 (fixed in 2.2.1)

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