CVE-2026-33676

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.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.33% chance of exploitation in the next 30 days, 26th percentile

Published

2026-03-24

Proof-of-concept exploits (1)

• advisories/GHSA-8cmm-j6c4-rr8v

References

• CVE Record
• NVD entry

Related

• CVE-2026-33675
• CVE-2026-33677
• CVE-2026-33671
• CVE-2026-33678
• CVE-2026-33668
• CVE-2026-33679