CVE-2026-71284
Fledge IoT Gateway Backup Restore OS Command Injection via Tar Member Filename
- State
- Published
- Severity
- 7.2 High
- Published
- Aug 5, 2026
- Updated
- Aug 10, 2026
- Reserved
- Aug 5, 2026
Description
Fledge's backup-restore upload handler, upload_backup (python/fledge/services/core/api/backup_restore.py), takes the first extracted tar member's filename (tar_file_names[0]) and builds a shell command via string formatting. Because os.system invokes a shell and no quoting (shlex.quote, list-form subprocess) is applied, an admin uploading a crafted backup archive achieves arbitrary OS command execution.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | TuranSec |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
fledgefledge-iot |
|
References
- https://github.com/fledge-iot/fledgethird-party-advisory
- https://github.com/fledge-iot/fledge/blob/main/python/fledge/services/core/api/backup_restore.pythird-party-advisory
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