CVE-2026-13401

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

16/07/2026

Last modified:

17/07/2026

Description

XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.<br /> <br /> The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.<br /> <br /> Nameless attributes such as "" or unbalanced quotes "" can trigger this condition.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://github.com/nanoscopic/perl-XML-Bare/pull/2
https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch
http://www.openwall.com/lists/oss-security/2026/07/16/2