CVE-2026-49825
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.
Published:Aug 20, 2026
Last Modified:Aug 21, 2026
EPS:Aug 20, 2026
EPSS Score:0.0024
CVSS Score:8.2
Affected Products
Vendor
Product
Action
Vendor
Fedora-python
Product
Lxml Html Clean
Fedora-python
Lxml Html Clean
Vendor
Lxml
Product
Lxml
Lxml
Lxml
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
