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      <title>CVE-2026-34582 — Botan has a TLS 1.3 certificate authentication bypass</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-34582</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; randombit botan, Red Hat Enterprise Linux 10&lt;/p&gt;
&lt;p&gt;Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which entirely omits Certificate, CertificateVerify, and the Finished message and instead sends application data records. This vulnerability is fixed in 3.11.1.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; randombit botan, Red Hat Enterprise Linux 10&lt;/p&gt;
&lt;p&gt;Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which entirely omits Certificate, CertificateVerify, and the Finished message and instead sends application data records. This vulnerability is fixed in 3.11.1.&lt;/p&gt;</content:encoded>
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