CVE-2026-35594 Vikunja Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's link share authentication GetLinkShareFromClaims in pkg/models/linksharing.go constructs authorization objects entirely from JWT claims without any server-side database validation. When a project owner delet...

SUSE CVE-2026-33700

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Project Link Share Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...