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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 8.2NVD modified 2026-10-26 10:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://github.com/fedora-python/lxml_html_clean/commit/322357ac61c6cf80fcbaba53b4e92e31f3ded9f2
- https://github.com/fedora-python/lxml_html_clean/releases/tag/0.4.5
- https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f
- https://github.com/lxml/lxml/commit/5927a6d5e851845140975d99b65461e255caaab0
- https://github.com/lxml/lxml/releases/tag/lxml-6.1.1
- https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f