CVE-2020-26099: cPanel

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

cPanel before 88.0.3 allows attackers to bypass the SMTP greylisting protection mechanism (SEC-491).

Affected products

• cPanel cPanel: before 88.0.3 (fixed in 88.0.3)

Published 2020-09-25. Last modified 2026-06-17.