CVE-2026-33676
Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read
MEDIUM 6.5EPSS 0.4%
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
- go-vikunja · vikunja
- CVSS v3.1 GITHUB
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.42% chance of exploitation in the next 30 days, 35th percentile
- Published
- 2026-03-24
Proof-of-concept exploits (1)
Security advisories
- go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
- go-vikunja/vikunja/pull/2449
- https://vikunja.io/changelog/vikunja-v2.2.2-was-released