{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71283", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "state": "PUBLISHED", "assignerShortName": "TuranSec", "dateReserved": "2026-08-05T12:23:34.968Z", "datePublished": "2026-08-05T12:26:29.146Z", "dateUpdated": "2026-08-05T12:52:52.583Z"}, "containers": {"cna": {"title": "Fledge IoT Gateway Backup Restore Tar Path Traversal", "descriptions": [{"lang": "en", "value": "Fledge's backup-restore upload handler, upload_backup() (python/fledge/services/core/api/backup_restore.py), calls tarfile.extractall(temp_path) on an admin-uploaded tar archive with no filter argument and no per-member path validation. A crafted tar archive containing member names with `../` path components extracts files outside the intended temporary directory, allowing arbitrary file writes anywhere on the filesystem reachable by the Fledge process. Requires the admin role (@has_permission(\"admin\"))."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-22", "cweId": "CWE-22", "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:N/I:H/A:N", "baseScore": 4.9, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/fledge-iot/fledge"}, {"url": "https://github.com/fledge-iot/fledge/blob/main/python/fledge/services/core/api/backup_restore.py"}], "credits": [{"lang": "en", "value": "Alibek Baxtiyorov", "type": "finder"}], "providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-05T12:52:52.583Z"}}}}

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