/usr/share/perl5/XML/ is in libxml-validator-schema-perl 1.10-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/XML/Validator/
/usr/share/perl5/XML/Validator/Schema/
/usr/share/perl5/XML/Validator/Schema.pm
/usr/share/perl5/XML/Validator/Schema/Attribute.pm
/usr/share/perl5/XML/Validator/Schema/AttributeLibrary.pm
/usr/share/perl5/XML/Validator/Schema/AttributeNode.pm
/usr/share/perl5/XML/Validator/Schema/ComplexTypeNode.pm
/usr/share/perl5/XML/Validator/Schema/ElementLibrary.pm
/usr/share/perl5/XML/Validator/Schema/ElementNode.pm
/usr/share/perl5/XML/Validator/Schema/ElementRefNode.pm
/usr/share/perl5/XML/Validator/Schema/Library.pm
/usr/share/perl5/XML/Validator/Schema/ModelNode.pm
/usr/share/perl5/XML/Validator/Schema/Node.pm
/usr/share/perl5/XML/Validator/Schema/Parser.pm
/usr/share/perl5/XML/Validator/Schema/RootNode.pm
/usr/share/perl5/XML/Validator/Schema/SimpleType.pm
/usr/share/perl5/XML/Validator/Schema/SimpleTypeNode.pm
/usr/share/perl5/XML/Validator/Schema/TypeLibrary.pm
/usr/share/perl5/XML/Validator/Schema/Util.pm