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      <title>CVE-2026-56446 — Authenticated Remote Code Execution via Arbitrary NDJSON Error Log Path in MISP</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-56446</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; misp&lt;/p&gt;
&lt;p&gt;MISP allowed a site administrator to configure an arbitrary filesystem path for the NDJSON error log used by JsonLogTool. Because log entries can include attacker-controlled content, an authenticated attacker with site administrator privileges could direct log output to a PHP file in a web-accessible directory and inject PHP code through logged data. Accessing the resulting file could lead to remote code execution with the privileges of the web server process.&lt;/p&gt;
&lt;p&gt;The fix restricts log destinations to existing directories beneath APP/tmp/logs or /var/log, requires absolute paths, rejects stream wrappers and traversal-related input, and limits filenames to .log or .ndjson extensions while disallowing executable extension segments.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; misp&lt;/p&gt;
&lt;p&gt;MISP allowed a site administrator to configure an arbitrary filesystem path for the NDJSON error log used by JsonLogTool. Because log entries can include attacker-controlled content, an authenticated attacker with site administrator privileges could direct log output to a PHP file in a web-accessible directory and inject PHP code through logged data. Accessing the resulting file could lead to remote code execution with the privileges of the web server process.&lt;/p&gt;
&lt;p&gt;The fix restricts log destinations to existing directories beneath APP/tmp/logs or /var/log, requires absolute paths, rejects stream wrappers and traversal-related input, and limits filenames to .log or .ndjson extensions while disallowing executable extension segments.&lt;/p&gt;</content:encoded>
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