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    <title>Most recent entries from all</title>
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      <title>CVE-2026-53977 — OpenChamber 1.11.7 Unauthenticated DoS via /api/system/shutdown</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-53977</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Bohdan Triapitsyn OpenChamber&lt;/p&gt;
&lt;p&gt;OpenChamber 1.11.7 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to terminate the server process by sending a POST request to the /api/system/shutdown endpoint, which is registered before the authentication middleware in the Express route handler chain. Attackers can exploit the route registration order in bootstrap-runtime.js to reach the shutdown handler before auth middleware executes, causing denial of service to all active AI coding sessions and locking out legitimate remote users regardless of whether UI_PASSWORD is configured.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Bohdan Triapitsyn OpenChamber&lt;/p&gt;
&lt;p&gt;OpenChamber 1.11.7 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to terminate the server process by sending a POST request to the /api/system/shutdown endpoint, which is registered before the authentication middleware in the Express route handler chain. Attackers can exploit the route registration order in bootstrap-runtime.js to reach the shutdown handler before auth middleware executes, causing denial of service to all active AI coding sessions and locking out legitimate remote users regardless of whether UI_PASSWORD is configured.&lt;/p&gt;</content:encoded>
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