CVE-2026-35595 Vikunja Affected by Privilege Escalation via Project Reparenting

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CanUpdate check at pkg/models/projectpermissions.go:139-148 only requires CanWrite on the new parent project when changing parentprojectid. However, Vikunja's permission model uses a recursive CTE that walks up th...

GHSA-2VQ4-854F-5C72 Vikunja vulnerable to Privilege Escalation via Project Reparenting

Summary A user with Write-level access to a project can escalate their permissions to Admin by moving the project under a project they own. After reparenting, the recursive permission CTE resolves ownership of the new parent as Admin on the moved project. The attacker can then delete the project,...