{"api_version":"1","generated_at":"2026-08-06T00:35:17+00:00","cve":"CVE-2026-71284","urls":{"html":"https://cve.report/CVE-2026-71284","api":"https://cve.report/api/cve/CVE-2026-71284.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-71284","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71284"},"summary":{"title":"Fledge IoT Gateway Backup Restore OS Command Injection via Tar Member Filename","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: `cmd = \"cp {} {}\".format(source, backup_path); ret_code = os.system(cmd)`. The only pre-check on the filename is a prefix/suffix match (startswith(backup_prefix), endswith(valid_extensions)), which a name such as `fledge_backup_$(id>/tmp/pwn).db` satisfies while still injecting a shell command substitution. 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The only pre-check on the filename is a prefix/suffix match (startswith(backup_prefix), endswith(valid_extensions)), which a name such as `fledge_backup_$(id>/tmp/pwn).db` satisfies while still injecting a shell command substitution. 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.","Type":"Description","Title":"Fledge IoT Gateway Backup Restore OS Command Injection via Tar M"}]}}}