CVE-2026-57433CWE-190

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

Critical · published July 13, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
28.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00357 · 28.2th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-07-13T15:37Z
EPSS history
Timeline
  • 13 JUL 15:37Z
    Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record
    cvelistv5