7.2highHigh
CVE-2026-71284
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.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an administrative account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.2 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-78
- Assigned by
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Dates
- Published
- 2026-08-05
- Last modified
- 2026-08-26
- Sources
- NVD