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      <title>CVE-2026-16895 — Authentication Bypass in Metasploit JSON-RPC Service When DB Health Check Fails</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-16895</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Rapid7 Metasploit-framework&lt;/p&gt;
&lt;p&gt;A logic vulnerability (fail-open condition) has been identified within the Metasploit Framework&amp;#39;s JSON-RPC web service interface. When an exception occurs during the database health check (db.check) and the environment variable MSF_WS_JSON_RPC_API_TOKEN is not explicitly set, the application resets the internal state flag msf.auth_initialized to false. The ApiToken Warden authentication strategy misinterprets this false value as an indicator that authentication is not initialized or required, thereby granting unauthenticated local access to the JSON-RPC request dispatcher.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Rapid7 Metasploit-framework&lt;/p&gt;
&lt;p&gt;A logic vulnerability (fail-open condition) has been identified within the Metasploit Framework&amp;#39;s JSON-RPC web service interface. When an exception occurs during the database health check (db.check) and the environment variable MSF_WS_JSON_RPC_API_TOKEN is not explicitly set, the application resets the internal state flag msf.auth_initialized to false. The ApiToken Warden authentication strategy misinterprets this false value as an indicator that authentication is not initialized or required, thereby granting unauthenticated local access to the JSON-RPC request dispatcher.&lt;/p&gt;</content:encoded>
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