UNKNOWN NVD
CVE-2026-107373
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
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://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f
- https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.06/changes
- https://rt.cpan.org/Public/Bug/Display.html?id=94110
- https://www.cve.org/CVERecord?id=CVE-2026-80490
- https://www.openwall.com/lists/oss-security/2026/10/10/7
This unknown severity vulnerability was published on 2026-10-10 via NVD.
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