Description
In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.
Published: 2026-06-30
Score: 2 Low
EPSS: < 1% Very Low
KEV: No
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Remediation

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Tracking

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History

Wed, 05 Aug 2026 03:00:00 +0200


Thu, 23 Jul 2026 23:45:00 +0200


Tue, 07 Jul 2026 19:30:00 +0200


Wed, 01 Jul 2026 12:30:00 +0200

Type Values Removed Values Added
First Time appeared Python
Python cpython
Vendors & Products Python
Python cpython

Tue, 30 Jun 2026 18:30:00 +0200

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 30 Jun 2026 18:00:00 +0200


Tue, 30 Jun 2026 17:00:00 +0200

Type Values Removed Values Added
Description In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.
Title Tarfile.extract() doesn't fully respect filter parameter
Weaknesses CWE-281
References
Metrics cvssV4_0

{'score': 2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: PSF

Published:

Updated: 2026-08-13T00:27:33.412Z

Reserved: 2026-03-17T19:25:46.527Z

Link: CVE-2026-4360

cve-icon Vulnrichment

Updated: 2026-06-30T15:28:27.269Z

cve-icon NVD

Status : Modified

Published: 2026-06-30T15:16:57.193

Modified: 2026-10-25T21:10:00.770

Link: CVE-2026-4360

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-01T12:01:22Z

Weaknesses
  • CWE-281

    Improper Preservation of Permissions