CVE-2026-71283
Fledge IoT Gateway Backup Restore Tar Path Traversal
CVSS Score
4.9
EPSS Score
0.0%
EPSS Percentile
0th
Fledge's backup-restore upload handler, upload_backup() (python/fledge/services/core/api/backup_restore.py), calls tarfile.extractall(temp_path) on an admin-uploaded tar archive with no filter argument and no per-member path validation. A crafted tar archive containing member names with `../` path components extracts files outside the intended temporary directory, allowing arbitrary file writes anywhere on the filesystem reachable by the Fledge process. Requires the admin role (@has_permission("admin")).
| CWE | CWE-22 |
| Vendor | fledge-iot |
| Product | fledge |
| Published | Aug 5, 2026 |
| Last Updated | Aug 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
fledge-iot / fledge
0 ≤ 3.1.0
References
Credits
Alibek Baxtiyorov