EUVD-2026-78655

Vikunja: Cross-tenant task-position rows can be injected into arbitrary project views via the unvalidated projectviewid in the task position endpoint v1 and v2...

Vikunja: Cross-tenant task-position rows can be injected into arbitrary project views via the unvalidated project_view_id in the task position endpoint (v1 and v2)

Summary The task-position endpoint authorizes only the task side of the write: TaskPosition.CanUpdate delegates to Task.CanUpdate write access to the task's own project and the request body's projectviewid is never validated to belong to the task's project, nor is any access to that view required...

Duplicate Advisory: Vikunja: Cross-tenant task-position rows can be injected into arbitrary project views via the unvalidated project_view_id in the task position endpoint (v1 and v2)

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-w39f-h553-h2mx. This link is maintained to preserve external references. Original Description Vikunja before 2.6.0 fails to validate that user-supplied projectviewid in task-position requests belongs to the task...

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...

CVE-2026-91984 Vikunja before 2.6.0 Broken Object-Level Authorization via task-position

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-2026-91984

Vikunja before 2.6.0 suffers from a Broken Object-Level Authorization in its task-position endpoints. The application fails to validate that a user-supplied project_view_id belongs to the task's own project, allowing authenticated attackers to insert task position rows into arbitrary other tenant...

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...

CVE-2026-91984 Vikunja before 2.6.0 Broken Object-Level Authorization via task-position

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...

SUSE 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...

GO-2026-6307 Vikunja vulnerable to authenticated cross-tenant kanban-bucket relocation via `project_view_id` mass-assignment in code.vikunja.io/api

Vikunja vulnerable to authenticated cross-tenant kanban-bucket relocation via projectviewid mass-assignment in code.vikunja.io/api. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing...

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 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...