{"id":"CVE-2026-107373","title":"ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument.\n\nThe typemap uses\n\n    $var = std::string( SvPV_nolen($arg), SvCUR($arg) )\n\nHowever, evaluation o…","summary":"ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument.\n\nThe typemap uses\n\n    $var = std::string( SvPV_nolen($arg), SvCUR($arg) )\n\nHowever, evaluation o…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125"],"product":"ExtUtils-Typemaps-Default","affected":["ExtUtils-Typemaps-Default < 1.06"],"published":"2026-10-10","updated":"2026-10-16","sourceUpdated":"2026-10-16T16:16:57.310","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107373","references":[{"url":"https://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f82a22d","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.06/changes","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://rt.cpan.org/Public/Bug/Display.html?id=94110","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80490","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"tags":["nvd","cve.org"],"epss":0.00387,"epssPercentile":0.32574,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T15:38:43.311020Z"},"ingestedAt":"2026-10-10T14:06:22.282Z","slug":"CVE-2026-107373","body":"## Overview\n\nExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument.\n\nThe typemap uses\n\n    $var = std::string( SvPV_nolen($arg), SvCUR($arg) )\n\nHowever, evaluation order for C++ arguments is not specified, and some compilers may produce code that evalutes SvCUR($arg) first.\n\nWhen $arg is not a string (for example, an interger, number or a reference) then SvCUR will return an invalid value, and the program may abort or segfault.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":223146,"id":"CVE-2026-107373","ts":1792172314754,"field":"cvss","old":null,"new":"9.1"},{"seq":223145,"id":"CVE-2026-107373","ts":1792172314754,"field":"severity","old":"none","new":"critical"}]}