CVE-2017-5992: Python Openpyxl

High severity, CVSS 8.2. EPSS: 1.2% chance of exploitation in the next 30 days.

Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document.

Affected products

• Python Openpyxl: version 2.4.1 only

Published 2017-02-15. Last modified 2026-06-17.