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CVE-2021-43818

HIGH CVSS: 8.2 Published: 2021-12-13 Modified: 2026-06-17

Description

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

Affected Platforms

Netapp SolidfireOracle Http ServerNetapp Hci Storage NodeFedoraproject FedoraOracle Communications Cloud Native Core PolicyDebian Debian LinuxNetapp Hci Storage Node FirmwareLxml LxmlOracle Zfs Storage Appliance KitNetapp Solidfire Enterprise Sds

Weakness Type

CWE-74, CWE-79, CWE-79

References