CVE-2026-52819 Kimai: Teamlead authorization bypass in GET /api/timesheets allows reading other users' timesheet records without being teamlead of the target

Kimai is an open-source time tracking application. Prior to 2.57.0, the GET /api/timesheets list endpoint accepts user and users target identifiers from a caller with viewothertimesheet but does not apply accessuser or verify that a ROLETEAMLEAD requester leads a team containing each target user...