lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. Security Fix: * lxml: NULL Pointer Dereference in lxml For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from the References section.