CVE-2026-71284 Fledge IoT Gateway Backup Restore OS Command Injection via Tar Member Filename
An admin can execute arbitrary OS commands by uploading a crafted backup archive to the Fledge IoT Gateway due to unsafe shell command construction.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71284?
CVE-2026-71284 is a high-severity command injection vulnerability in fledge-iot fledge, published on 5 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-71284?
How do I fix CVE-2026-71284?
No fix has been published for CVE-2026-71284 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-71284 being exploited?
There is no known exploitation of CVE-2026-71284 in the wild and no public exploit code.
Sources
Also known as GHSA-6h3f-43g6-3hqh.