/ 
XML-LibXML-2.0209
/ XML::LibXML::DocumentFragment
Security Advisories (1)
CVE-2026-8177 (2026-05-10)

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

NAME

XML::LibXML::DocumentFragment - XML::LibXML's DOM L2 Document Fragment Implementation

SYNOPSIS

use XML::LibXML;

DESCRIPTION

This class is a helper class as described in the DOM Level 2 Specification. It is implemented as a node without name. All adding, inserting or replacing functions are aware of document fragments now.

As well all unbound nodes (all nodes that do not belong to any document sub-tree) are implicit members of document fragments.

AUTHORS

Matt Sergeant, Christian Glahn, Petr Pajas

VERSION

2.0209

COPYRIGHT

2001-2007, AxKit.com Ltd.

2002-2006, Christian Glahn.

2006-2009, Petr Pajas.

LICENSE

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.