CVE-2026-40103

Summary: Vikunja (open-source self-hosted task manager) had a scoped API token bypass: a token with only the projects.background permission could delete a project background due to a method-confusion in token enforcement. The root cause was in the route permission matching (CanDoAPIRoute) that re...

CVE-2026-40103 Vikunja's Scoped API tokens with projects.background permission can delete project backgrounds

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only...

EUVD-2026-21494

Vikunja: Scoped API tokens with projects.background permission can delete project backgrounds...