Is CVE-2026-49825 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-49825?

CVE-2026-49825 has a CVSS v3 severity of HIGH (8.2).

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CVE-2026-49825

Description

lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in ``lxml.html.defs.link_attrs`` were missing ``xlink:href``, which can be used for URL bypass attacks in embedded SVG/MathML/etc. content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean 0.4.5.