CVE-2026-48976 HomeBox: Cross-Tenant IDOR in Notifier Update Leaks Shoutrrr Credentials and Allows Webhook Hijack

HomeBox is a home inventory and organization system. Prior to 0.26.0, NotifierRepository.Update in backend/internal/data/repo/reponotifier.go updates a notifier through UpdateOneIDid without requiring the record's user ID to match the authenticated user. An authenticated user who supplies another...