{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71284","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","state":"PUBLISHED","assignerShortName":"TuranSec","dateReserved":"2026-08-05T12:23:34.968Z","datePublished":"2026-08-05T12:26:30.030Z","dateUpdated":"2026-08-10T11:47:10.756Z"},"containers":{"cna":{"title":"Fledge IoT Gateway Backup Restore OS Command Injection via Tar Member Filename","descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>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.</p>"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-78","cweId":"CWE-78","type":"CWE"}]}],"affected":[{"vendor":"fledge-iot","product":"fledge","programFiles":["python/fledge/services/core/api/backup_restore.py"],"versions":[{"version":"0","lessThanOrEqual":"3.1.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":7.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://github.com/fledge-iot/fledge","tags":["third-party-advisory"]},{"url":"https://github.com/fledge-iot/fledge/blob/main/python/fledge/services/core/api/backup_restore.py","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Alibek Baxtiyorov","type":"finder"}],"providerMetadata":{"orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","shortName":"TuranSec","dateUpdated":"2026-08-10T11:47:10.756Z"},"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T12:26:30.030Z"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T15:52:35.521988Z","id":"CVE-2026-71284","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T15:52:42.370Z"}}]}}