CVE-2026-107373
9.1 CRITICALpublic exploit availablePublished 2026-10-10 · Updated 2026-10-16
AI risk analysis
- Summary
- A buffer over-read vulnerability exists in ExtUtils::Typemaps::STL::String typemap where incorrect evaluation order can cause reading of invalid string length values when processing non-string arguments, potentially leading to program crashes or segmentation faults.
- Exploitability
- Exploitation is moderately difficult as it requires controlling the input to a Perl script that uses the affected typemap with non-string arguments, but the vulnerability can be triggered through standard Perl argument passing patterns.
- Blast radius
- The impact could affect any Perl application using the ExtUtils::Typemaps::STL::String typemap with non-string arguments, potentially causing widespread application instability and crashes across systems running affected Perl modules.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to version 1.06 or later of ExtUtils::Typemaps::STL::String
Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.
NVD 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-125
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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