CVE-2026-107794CWE-191

CVE-2026-107794

High · published October 10, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
30.2
In the wild
Unconfirmed
What it is

ExtUtils::Typemaps::STL::List versions before 1.07 for Perl allocate a 32 GiB array on an empty list.

The OUTPUT typemaps call av_extend( av, len-1 ). On an empty list, this undeflows, and av_extend will allocate an array with 2^32 slots, leading to memory exhaustion.

Note that a similar issue was fixed in ExtUtils::Typemaps::STL::Vector version 1.05.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00375 · 30.2th percentile
Weakness
CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2026-10-10T17:17Z
References (3)
https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.07/changes · 9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://rt.cpan.org/Public/Bug/Display.html?id=91213 · 9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://www.cve.org/CVERecord?id=CVE-2013-10076 · 9b29abf9-4ab0-4765-b253-1875cd9b441e
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 12:45Z
    ExtUtils::Typemaps::STL::List versions before 1.07 for Perl allocate a 32 GiB array on an empty list
    cvelistv5
  • 10 OCT 12:45Z
    ExtUtils::Typemaps::STL::List versions before 1.07 for Perl allocate a 32 GiB array on an empty list
    cvelistv5