CVE-2026-34084: PhpSpreadsheet has SSRF/RCE in IOFactory::load when $filename is user controlled

Ghostwire Analysis — What This Means Practically

• Critical CVSS score indicates maximum severity — remote code execution, authentication bypass, or complete system compromise is likely possible.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.