CVE-2026-71283

4.9 MEDIUM 0.4% exploit odds No fix listed Disclosure

What it is

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")).

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data tampering.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-08-05 13:24 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-23 21:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-08-05 13:24 UTC
Last modified: 2026-10-23 21:10 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-22 · Path traversal
Record status: Deferred

Attack profile CVSS 3.1 · 4.9

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Raw vector

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

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References

NVD record · CVE.org record