CVE-2026-57433 Affecting perl package, versions <5.40.1-8


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-PERL-17960074
  • published14 Jul 2026
  • disclosed13 Jul 2026

Introduced: 13 Jul 2026

CVE-2026-57433  (opens in a new tab)

How to fix?

Upgrade Debian:unstable perl to version 5.40.1-8 or higher.

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:unstable relevant fixed versions and status.

Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record.

retrieve_hook_common reads a signed 32-bit item count from an SX_HOOK record and calls av_extend with that count plus one. A count of I32_MAX wraps the addition to a negative value.

A crafted blob passed to thaw or retrieve triggers the overflow; av_extend receives the negative count and dies with a panic, terminating the deserialization.

CVSS Base Scores

version 3.1