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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

16 Oct 2026, 20:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

10 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-10 13:17

Updated : 2026-10-16 20:17

NVD link : CVE-2026-107794

Mitre link : CVE-2026-107794

CVE.ORG link : CVE-2026-107794

JSON object : View

Products Affected

No product.

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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