CVE-2026-54766

Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/projectduplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project...

Vikunja has a project duplication bypasses write-permission check on the target parent project

Summary The project-duplication endpoint fails to enforce write access to the target parent project. Any authenticated non-link-share user can duplicate a project they can read into any parent project on the instance, regardless of whether they have write access to that parent — injecting an...

GHSA-F27P-PW2P-9PR4 Vikunja has a project duplication bypasses write-permission check on the target parent project

Summary The project-duplication endpoint fails to enforce write access to the target parent project. Any authenticated non-link-share user can duplicate a project they can read into any parent project on the instance, regardless of whether they have write access to that parent — injecting an...

CVE-2026-54766

Vikunja , an open-source self-hosted task management platform, has an authorization bypass in its project duplication endpoint (PUT /api/v1/projects/{project}/duplicate). The flaw in ProjectDuplicate.CanCreate (pkg/models/project_duplicate.go) calls parent.CanCreate on an unhydrated Project struc...

CVE-2026-54766 Vikunja: Project duplication bypasses write-permission check on the target parent project

Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/projectduplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project...

CVE-2026-54766 Vikunja: Project duplication bypasses write-permission check on the target parent project

Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/projectduplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project...

EUVD-2026-67830

Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/projectduplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project...

PT-2026-83229

Name of the Vulnerable Software and Affected Versions Vikunja versions 0.21.0 through 2.3.0 Description An authorization bypass exists in the project duplication process. An authenticated user with read access to a source project can duplicate it and place the copy under any arbitrary target pare...