Detections
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CVE-2026-107373
critical
Description
ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument. The typemap uses $var = std::string( SvPV_nolen($arg), SvCUR($arg) ) However, evaluation order for C++ arguments is not specified, and some compilers may produce code that evalutes SvCUR($arg) first. When $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.
References
https://www.cve.org/CVERecord?id=CVE-2026-80490
https://rt.cpan.org/Public/Bug/Display.html?id=94110
https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.06/changes
https://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f82a22d