========================================================================
CVE-2026-13401                                       CPAN Security Group
========================================================================

         CVE ID:  CVE-2026-13401
   Distribution:  XML-Bare
       Versions:  through 0.53

       MetaCPAN:  https://metacpan.org/dist/XML-Bare
       VCS Repo:  https://github.com/nanoscopic/perl-XML-Bare

XML::Bare versions through 0.53 for Perl will hang in an infinite loop
when parsing malformed attributes

Description
-----------
XML::Bare versions through 0.53 for Perl will hang in an infinite loop
when parsing malformed attributes.

The parserc_parse function never advances the attribute-parse state
cursor on certain malformed attribute forms, looping forever.

Nameless attributes such as "<a ='c'>" or unbalanced quotes "<a
b='''''''c'>" can trigger this condition.

Problem types
-------------
- CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

Workarounds
-----------
Apply the patch.

References
----------
https://github.com/nanoscopic/perl-XML-Bare/pull/2
https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch