CVE-2026-49825
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| lxml | lxml | < 6.1.1 | affected |
| fedora-python | lxml_html_clean | < 0.4.5 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CWE-184: CWE-184: Incomplete List of Disallowed Inputs
References
- https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f
- https://github.com/fedora-python/lxml_html_clean/commit/322357ac61c6cf80fcbaba53b4e92e31f3ded9f2
- https://github.com/lxml/lxml/commit/5927a6d5e851845140975d99b65461e255caaab0
- https://github.com/fedora-python/lxml_html_clean/releases/tag/0.4.5
- https://github.com/lxml/lxml/releases/tag/lxml-6.1.1
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