CVE-2026-59154 Wekan: Checklist direct DDP updates can write checklist data into private boards

Wekan is open source kanban built with Meteor. Prior to 9.64, Wekan has a cross-board authorization bypass in the direct Meteor collection allow rules for Checklists and ChecklistItems because updates are authorized only against the current source doc.cardId and do not inspect the destination...

CVE-2026-59154

The CVE affects Wekan (open‑source Kanban) prior to version 9.64. A cross‑board authorization bypass exists in the direct Meteor collection allow rules for Checklists and ChecklistItems: updates are authorized only against the current source doc.cardId and do not inspect destination cardId or boa...