CVE-2026-107373ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument
Updated under an hour ago ()
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EPSS puts the chance of exploitation in the next 30 days at 0.19%, higher than 8% of scored CVEs.
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.
- CVSS
- 9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.19% (percentile 8)
- Assigned by
- CPANSec
- NVD analysis
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 10, 2026
Affected products
No affected products are listed yet.
References
- https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.06/changesrelease-notes
- https://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f82a22d
- https://rt.cpan.org/Public/Bug/Display.html?id=94110issue-tracking
- https://www.cve.org/CVERecord?id=CVE-2026-80490related
The CVE record on cve.org NVD's entry
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