Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.

_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.

A subsequent open through the extracted name reads or writes the attacker chosen path.

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Advisories

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Fixes

Solution

Upgrade to Archive::Tar 3.08 or later.


Workaround

No workaround given by the vendor.

History

Thu, 28 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 27 May 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Archive\
Archive\ \
CPEs cpe:2.3:a:archive\:\:tar_project:archive\:\:tar:*:*:*:*:*:perl:*:*
Vendors & Products Archive\
Archive\ \
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Tue, 26 May 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Bingos
Bingos archive::tar
Vendors & Products Bingos
Bingos archive::tar

Tue, 26 May 2026 01:30:00 +0000

Type Values Removed Values Added
Description Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target. A subsequent open through the extracted name reads or writes the attacker chosen path.
Title Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory
Weaknesses CWE-59
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-05-28T13:08:37.326Z

Reserved: 2026-04-27T18:34:48.417Z

Link: CVE-2026-42496

cve-icon Vulnrichment

Updated: 2026-05-28T13:08:22.601Z

cve-icon NVD

Status : Modified

Published: 2026-05-26T02:16:40.130

Modified: 2026-05-28T14:16:20.023

Link: CVE-2026-42496

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T21:00:14Z

Weaknesses