CVE-2021-26758: Litespeedtech Openlitespeed

High severity, CVSS 8.8. EPSS: 2.7% chance of exploitation in the next 30 days.

Privilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute commands on the host system.

Affected products

• Litespeedtech Openlitespeed: version 1.7.8 only

Published 2021-04-07. Last modified 2026-06-17.