CVE-2026-107794

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-25)

CWE

CWE-191

Published

2026-10-10

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://metacpan.org/release/SMUELLER/ExtUtils-Typemaps-Default-1.07/changes
• https://rt.cpan.org/Public/Bug/Display.html?id=91213
• https://www.cve.org/CVERecord?id=CVE-2013-10076

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