by Kastro
Paper/Archive/CVE-2026-57433

CVE-2026-57433

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

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 41.1.411 × 208.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Storable< 3.413.41CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchgithub.com/Perl/perl5/commit/e4f681784bcdeaa91ff02a2fa4cdcae5c46779d7.patchrefopenwall.com/lists/oss-security/2026/07/13/7