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      <title>CVE-2026-49825 — lxml: javascript: URL bypass in Cleaner via xlink:href</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-49825</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; lxml, fedora-python lxml_html_clean&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; lxml, fedora-python lxml_html_clean&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</content:encoded>
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