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CVE-2026-107373

9.1 critical SSVC exploitation: none Deferred
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. CVSS9.1 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)NVD modified 2026-10-16 16:16
  2. StatusReceived → DeferredNVD modified 2026-10-15 14:42
  3. First seenunscoredNVD modified 2026-10-10 13:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4