CVE-2026-55065: Go-Vikunja Vikunja

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projects/:project/views/:view permits an authenticated user to supply a view identifier from another project while authorizing only against an attacker-controlled project identifier. ProjectView.CanDelete in pkg/models/project_view_permissions.go does not establish that the view belongs to the path project, and ProjectView.Delete in pkg/models/project_view.go continues after the scoped project_views delete affects no rows. Its subsequent deletes select task_buckets and task_positions only by project_view_id, allowing cross-tenant destruction of Kanban assignments and ordering while leaving the victim view and tasks intact. This issue is fixed in version 2.4.0.

Affected products

• Go-Vikunja Vikunja: from 0.24.6, before 2.4.0 (fixed in 2.4.0)

Published 2026-08-28. Last modified 2026-09-09.