CVE-2026-42496 Affecting perl package, versions *


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-DEBIAN11-PERL-17037366
  • published29 May 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-42496  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 perl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1