{"id":"CVE-2026-57433","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-57433","summary":"Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record","details":"Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record.\n\nretrieve_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.\n\nA crafted blob passed to thaw or retrieve triggers the overflow; av_extend receives the negative count and dies with a panic, terminating the deserialization.","published":"2026-07-13T15:37:04.517Z","modified":"2026-08-12T03:51:32.352347815Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00357,"percentile":0.28583,"asOf":"2026-08-30"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":{"url":"https://github.com/Perl/perl5/commit/e4f681784bcdeaa91ff02a2fa4cdcae5c46779d7.patch","label":"Perl/perl5@e4f6817"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/07/13/7"},{"type":"WEB","url":"https://cpan.org/modules"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57433.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57433"},{"type":"FIX","url":"https://github.com/Perl/perl5/commit/e4f681784bcdeaa91ff02a2fa4cdcae5c46779d7.patch"},{"type":"PACKAGE","url":"https://github.com/Perl/perl5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:32.352347815Z"}}