CVE-2026-91984

Vikunja before 2.6.0 fails to validate that user-supplied projectviewid in task-position requests belongs to the task's project. Authenticated attackers can insert task position rows into arbitrary other tenant project views via POST or PUT task-position endpoints...

EUVD-2026-78655

Vikunja before 2.6.0 fails to validate that user-supplied projectviewid in task-position requests belongs to the task's project. Authenticated attackers can insert task position rows into arbitrary other tenant project views via POST or PUT task-position endpoints...

CVE-2026-55067

Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/project/views/view/buckets/bucket allows the request body projectviewid value to be mass assigned by Bucket.Update in pkg/models/kanban.go. The permission check validates that the bucket currentl...

GHSA-569V-Q83C-3J3G Vikunja vulnerable to authenticated cross-tenant kanban-bucket relocation via `project_view_id` mass-assignment

Summary POST /api/v1/projects/project/views/view/buckets/bucket mass-assigns the request body's projectviewid onto the bucket row. The permission check only verifies that the URL-supplied bucket already belongs to the URL-supplied project, view pair; the body's projectviewid is never validated. A...

CVE-2026-55067 Vikunja: Authenticated cross-tenant kanban-bucket relocation via `project_view_id` mass-assignment

Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/project/views/view/buckets/bucket allows the request body projectviewid value to be mass assigned by Bucket.Update in pkg/models/kanban.go. The permission check validates that the bucket currentl...

CVE-2026-55067 Vikunja: Authenticated cross-tenant kanban-bucket relocation via `project_view_id` mass-assignment

Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/project/views/view/buckets/bucket allows the request body projectviewid value to be mass assigned by Bucket.Update in pkg/models/kanban.go. The permission check validates that the bucket currentl...

CVE-2026-55067

Vikunja , an open-source self-hosted task management platform, is affected by a cross-tenant mass-assignment flaw prior to 2.4.0 . In pkg/models/kanban.go, the Bucket.Update function writes the request body's project_view_id without validating the destination view; the permission check only confi...