CVE-2026-33676 Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33676

Summary: Vikunja, an open-source self-hosted task manager, has a cross-project information disclosure in its API. Before 2.2.1, when returning tasks, the API fills the related_tasks field with full task objects for all related tasks without verifying the requester’s read permission on those proje...