CVE-2026-71284

HIGH 7.2

Fledge IoT Gateway Backup Restore OS Command Injection via Tar Member Filename

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78
Vendor	fledge-iot
Product	fledge
Published	Aug 5, 2026
Last Updated	Aug 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

fledge-iot / fledge

0 ≤ 3.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/fledge-iot/fledge github.com: https://github.com/fledge-iot/fledge/blob/main/python/fledge/services/core/api/backup_restore.py

Credits

Alibek Baxtiyorov