CVE-2026-107373 Affecting libextutils-typemaps-default-perl package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Oct 2026
- disclosed10 Oct 2026
Introduced: 10 Oct 2026
NewCVE-2026-107373 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest libextutils-typemaps-default-perl.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libextutils-typemaps-default-perl package and not the libextutils-typemaps-default-perl package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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://advisory.echohq.com/cve/CVE-2026-107373
- https://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f82a22d
- 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