CVEvulnerability
CVE-2026-107373
9.1 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-10-10
- Last modified
- 2026-10-16
- Assigner
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weaknesses
- CWE-125
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.
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/tsee/extutils-typemap-default/commit/a6b9c298b34ddadc582961403e715d292f82a22d github.com
- https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.06/changes metacpan.org
- https://rt.cpan.org/Public/Bug/Display.html?id=94110 rt.cpan.org
- https://www.cve.org/CVERecord?id=CVE-2026-80490 www.cve.org