TI-2026-49951 Aliases CVE-2026-71284 GHSA-6h3f-43g6-3hqh

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

LOW 35CWE-78Published 2026-08-05 · Updated 2026-08-10

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00918 60th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
fledge-iot	fledge	up to 3.1.0	—	No fix listed	CNA

fledge Vendorfledge-iot Affected up to 3.1.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-71284
2026-10-03 Alias added: GHSA-6h3f-43g6-3hqh

References

Advisory 2

TI-2026-49950 Fledge IoT Gateway Backup Restore Tar Path Traversal CVSS 3.1MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences