Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nwclark | Storable | < 3.41 |
Related Weaknesses (CWE)
References
- https://github.com/Perl/perl5/commit/e4f681784bcdeaa91ff02a2fa4cdcae5c46779d7.paPatch
- http://www.openwall.com/lists/oss-security/2026/07/13/7Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2026-57433?
CVE-2026-57433 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 cal...
How severe is CVE-2026-57433?
CVE-2026-57433 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-57433?
Check the references section above for vendor advisories and patch information. Affected products include: Nwclark Storable.