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    <lastBuildDate>Mon, 05 Oct 2026 21:54:15 +0000</lastBuildDate>
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      <title>CVE-2026-90447 — Authentication Bypass by Spoofing in Malcolm</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-90447</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CISA Malcolm&lt;/p&gt;
&lt;p&gt;A routing rule selects between two different authentication mechanisms for the same downstream service based on the value of a client-supplied request header, rather than on any property the client cannot control. An authenticated user in possession of a shared service credential can set this header to route around the primary role-based authorization check and reach the alternate path&amp;#39;s fixed, elevated role instead. This allows a low-privileged authenticated attacker who knows the shared credential to perform actions reserved for a higher-privileged role.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CISA Malcolm&lt;/p&gt;
&lt;p&gt;A routing rule selects between two different authentication mechanisms for the same downstream service based on the value of a client-supplied request header, rather than on any property the client cannot control. An authenticated user in possession of a shared service credential can set this header to route around the primary role-based authorization check and reach the alternate path&amp;#39;s fixed, elevated role instead. This allows a low-privileged authenticated attacker who knows the shared credential to perform actions reserved for a higher-privileged role.&lt;/p&gt;</content:encoded>
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