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    <lastBuildDate>Mon, 05 Oct 2026 07:13:49 +0000</lastBuildDate>
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      <title>CVE-2026-61466 — Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-61466</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Apache Software Foundation Apache CXF&lt;/p&gt;
&lt;p&gt;In Apache CXF&amp;#39;s OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at registration time. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Apache Software Foundation Apache CXF&lt;/p&gt;
&lt;p&gt;In Apache CXF&amp;#39;s OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the `scope` value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at registration time. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.&lt;/p&gt;</content:encoded>
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