Vulnerability-Lookup

GHSA-QC6R-CHRX-M659

Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-05 15:32

Details

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")).

Severity

4.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-71283"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T13:24:52Z",
    "severity": "MODERATE"
  },
  "details": "Fledge\u0027s 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\")).",
  "id": "GHSA-qc6r-chrx-m659",
  "modified": "2026-08-05T15:32:21Z",
  "published": "2026-08-05T15:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71283"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fledge-iot/fledge"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fledge-iot/fledge/blob/main/python/fledge/services/core/api/backup_restore.py"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-71283 (GCVE-0-2026-71283)

Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-10 11:47

Title

Fledge IoT Gateway Backup Restore Tar Path Traversal

Summary

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. Requires the admin role (@has_permission("admin")).

Severity

4.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 15:52 UTC

CWE

CWE-22

Assigner

TuranSec redhat root

References

2 references

URL	Tags
https://github.com/fledge-iot/fledge	third-party-advisory
https://github.com/fledge-iot/fledge/blob/main/py…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
fledge-iot	fledge	Affected: 0 , ≤ 3.1.0 (semver)

Date Public

2026-08-05 12:26

Credits

Alibek Baxtiyorov

Show details on NVD website

JSON

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  "containers": {
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        "metrics": [
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                "id": "CVE-2026-71283",
                "options": [
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                  },
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T15:52:56.335077Z",
                "version": "2.0.3"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-QC6R-CHRX-M659

CVE-2026-71283 (GCVE-0-2026-71283)

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