USN-8897-1: lxml vulnerabilities
Ubuntu fixes lxml flaws that can bypass URL sanitization for XSS and leak local files via untrusted XML.
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CVE-2026-49825
- CVSS 3.1
- 8.2 high
- EPSS
- <1%p15
- Published
- ·
- Modified
Description · NVD
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.
- Weakness
- CWE-79, CWE-184
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N