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Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record. (CVE-2026-57433)

0
Medium
VulnerabilityCVE-2026-57433gcveosvubuntu-cve-2026-57433ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-22-04-ltsubuntu-24-04-ltsubuntu-26-04-ltscve-2026-57433
Published: 07/13/2026 (07/13/2026, 17:17:00 UTC)
Source: GCVE Database
Product: perl

Description

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 v3.1

Score 9.8critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]+esm7?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=5.14.2-21build1=5.18.1-4=5.18.1-4build1=5.18.1-5=5.18.2-2=5.18.2-2ubuntu1=5.18.2-2ubuntu1.1=5.18.2-2ubuntu1.3=5.18.2-2ubuntu1.4=5.18.2-2ubuntu1.6=5.18.2-2ubuntu1.7=5.18.2-2ubuntu1.7+esm3=5.18.2-2ubuntu1.7+esm4=5.18.2-2ubuntu1.7+esm5=5.18.2-2ubuntu1.7+esm7
Ubuntu:Pro:16.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra-legacy/xenial
Affected versions
=5.20.2-6=5.22.1-3=5.22.1-4=5.22.1-5=5.22.1-7=5.22.1-8=5.22.1-9=5.22.1-9ubuntu0.2=5.22.1-9ubuntu0.3=5.22.1-9ubuntu0.5=5.22.1-9ubuntu0.6=5.22.1-9ubuntu0.9=5.22.1-9ubuntu0.9+esm1=5.22.1-9ubuntu0.9+esm2
Ubuntu:Pro:18.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra/bionic
Affected versions
=5.26.0-8ubuntu1=5.26.1-2ubuntu1=5.26.1-3=5.26.1-4=5.26.1-4build1=5.26.1-5=5.26.1-6=5.26.1-6ubuntu0.1=5.26.1-6ubuntu0.2=5.26.1-6ubuntu0.3=5.26.1-6ubuntu0.5=5.26.1-6ubuntu0.6=5.26.1-6ubuntu0.7=5.26.1-6ubuntu0.7+esm2
Ubuntu:Pro:20.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra/focal
Affected versions
=5.28.1-6build1=5.30.0-7=5.30.0-9=5.30.0-9build1=5.30.0-9ubuntu0.2=5.30.0-9ubuntu0.3=5.30.0-9ubuntu0.4=5.30.0-9ubuntu0.5=5.30.0-9ubuntu0.5+esm2
Ubuntu:22.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]?arch=source&distro=jammy
Affected versions
=5.32.1-3ubuntu3=5.34.0-3ubuntu1=5.34.0-3ubuntu1.1=5.34.0-3ubuntu1.2=5.34.0-3ubuntu1.3=5.34.0-3ubuntu1.4=5.34.0-3ubuntu1.5=5.34.0-3ubuntu1.7
Ubuntu:24.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]?arch=source&distro=noble
Affected versions
=5.36.0-9ubuntu1=5.36.0-10ubuntu1=5.38.2-3=5.38.2-3.2=5.38.2-3.2build1=5.38.2-3.2build2=5.38.2-3.2build2.1=5.38.2-3.2ubuntu0.1=5.38.2-3.2ubuntu0.2=5.38.2-3.2ubuntu0.3
Ubuntu:26.04:LTSmore threats →ghsa
perl
pkg:deb/ubuntu/[email protected]?arch=source&distro=resolute
Affected versions
=5.40.1-6build1=5.40.1-7build1=5.40.1-7ubuntu0.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-57433
Osv Schema Version
1.7.0
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a58b46268715ace43d6eb1f

Added to database: 07/16/2026, 10:37:22 UTC

Last enriched: 07/16/2026, 11:38:26 UTC

Last updated: 09/14/2026, 17:02:24 UTC

Views: 31

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