CVE-2026-40902: PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions

Ghostwire Analysis — What This Means Practically

• High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.

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