CVE-2026-35595
Last modified
CVE-2026-35595 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CanUpdate check at pkg/models/project_permissions.go:139-148 only requires CanWrite on the new parent project when changing parent_project_id. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CanUpdate check at pkg/models/project_permissions.go:139-148 only requires CanWrite on the new parent project when changing parent_project_id. However, Vikunja's permission model uses a recursive CTE that walks up the project hierarchy to compute permissions. Moving a project under a different parent changes the permission inheritance chain. When a user has inherited Write access (from a parent project share) and reparents the child project under their own project tree, the CTE resolves their ownership of the new parent as Admin (permission level 2) on the moved project. This vulnerability is fixed in 2.3.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vikunja | Vikunja | < 2.3.0 |
References
- https://github.com/go-vikunja/vikunja/pull/2583Issue Tracking
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-2vq4-854f-5c72Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-35595?
How severe is CVE-2026-35595?
How do I fix CVE-2026-35595?
Are you affected by CVE-2026-35595?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST