CVE-2026-9538 Affecting perl:5.32/perl-Socket package, versions <4:2.031-1.module_el8.6.0+3181+91434291


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.45% (37th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PERL-18511368
  • published3 Aug 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

NewCVE-2026-9538  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 perl:5.32/perl-Socket to version 4:2.031-1.module_el8.6.0+3181+91434291 or higher.
This issue was patched in ALSA-2026:48225.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl:5.32/perl-Socket package and not the perl:5.32/perl-Socket package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header.

_read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value.

A crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size.

CVSS Base Scores

version 3.1