https://bugzilla.redhat.com/show_bug.cgi?id=2521818
Bug ID: 2521818
Summary: CVE-2026-13401 perl-XML-Bare: perl-XML-Bare: Denial of
Service via malformed XML attributes [epel-all]
Product: Fedora EPEL
Version: epel10
Status: NEW
Whiteboard: {"flaws": ["0e998650-39b7-4387-a4e7-c2c6dfc2446f"]}
Component: perl-XML-Bare
Keywords: Security, SecurityTracking
Severity: high
Priority: high
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Blocks: 2501406
Target Milestone: ---
Classification: Fedora
Disclaimer: Community trackers are created by Red Hat Product Security team on
a best effort basis. Package maintainers are required to ascertain if the flaw
indeed affects their package, before starting the update process.
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.
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