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CVE-2026-57433

9.8 critical SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.8 · nwclarkNVD modified 2026-10-24 22:10

Affected (CPE criteria) 1

  • cpe:2.3:a:nwclark:storable:*:*:*:*:*:perl:*:*

References 2