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

CVE ID :CVE-2026-57433

Published : July 13, 2026, 5:17 p.m. | 12 minutes ago

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.

Severity: 0.0 | NA

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