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    <lastBuildDate>Tue, 06 Oct 2026 22:13:52 +0000</lastBuildDate>
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      <title>CVE-2026-8890 — code100x Mobile API Authentication Bypass via Header Spoofing</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-8890</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; code100x&lt;/p&gt;
&lt;p&gt;code100x contains an authentication bypass vulnerability in the Mobile API that allows unauthenticated attackers to impersonate arbitrary users by supplying a crafted JSON payload in the &amp;#39;g&amp;#39; HTTP header. The middleware in middleware.ts skips identity header generation when an Auth-Key header is present without validating its value, allowing attackers to inject a spoofed user identity header that the downstream route handler in the mobile courses endpoint accepts as trusted, granting unauthorized access to course data belonging to any enrolled user or administrator.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; code100x&lt;/p&gt;
&lt;p&gt;code100x contains an authentication bypass vulnerability in the Mobile API that allows unauthenticated attackers to impersonate arbitrary users by supplying a crafted JSON payload in the &amp;#39;g&amp;#39; HTTP header. The middleware in middleware.ts skips identity header generation when an Auth-Key header is present without validating its value, allowing attackers to inject a spoofed user identity header that the downstream route handler in the mobile courses endpoint accepts as trusted, granting unauthorized access to course data belonging to any enrolled user or administrator.&lt;/p&gt;</content:encoded>
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