CVE-2026-33676
Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read
- State
- Published
- Severity
- 6.5 Medium
- Published
- Mar 24, 2026
- Updated
- Mar 24, 2026
- Reserved
- Mar 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
vikunjago-vikunja |
|
References
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