CVE-2026-71283 Fledge IoT Gateway Backup Restore Tar Path Traversal

Fledge's backup-restore upload handler, uploadbackup python/fledge/services/core/api/backuprestore.py, calls tarfile.extractalltemppath on an admin-uploaded tar archive with no filter argument and no per-member path validation. Requires the admin role @haspermission"admin"...