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    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Sat, 03 Oct 2026 11:39:43 +0000</lastBuildDate>
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      <title>CVE-2026-65905 — Apache Tomcat: Limited replay attack possible with DIGEST authentication</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-65905</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Apache Software Foundation Apache Tomcat&lt;/p&gt;
&lt;p&gt;Authentication Bypass by Capture-replay vulnerability in Apache Tomcat&amp;#39;s DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST 
authenticated request with a nonceCount on the upper boundary of the 
replay window then that request is replayable once only while the 
associated nonceCount remains within the replay window.&lt;/p&gt;
&lt;p&gt;This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.&lt;/p&gt;
&lt;p&gt;The following versions were EOL at the time the CVE was created but are 
known to be affected: from 8.5.0 through 8.5.100, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected.&lt;/p&gt;
&lt;p&gt;Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Apache Software Foundation Apache Tomcat&lt;/p&gt;
&lt;p&gt;Authentication Bypass by Capture-replay vulnerability in Apache Tomcat&amp;#39;s DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST 
authenticated request with a nonceCount on the upper boundary of the 
replay window then that request is replayable once only while the 
associated nonceCount remains within the replay window.&lt;/p&gt;
&lt;p&gt;This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.&lt;/p&gt;
&lt;p&gt;The following versions were EOL at the time the CVE was created but are 
known to be affected: from 8.5.0 through 8.5.100, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected.&lt;/p&gt;
&lt;p&gt;Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.&lt;/p&gt;</content:encoded>
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