CVE-2026-104474: Litespeedtech Openlitespeed

Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days.

OpenLiteSpeed before 1.9.3 contains a local privilege escalation vulnerability in admin/misc/lsup.sh that runs unverified update packages from a nobody-writable directory as root. Attackers controlling the nobody web process can replace the package in /usr/local/lsws/autoupdate/ before extraction, so its install.sh runs as root on the next update.

Affected products

• Litespeedtech Openlitespeed: before 1.9.3 (fixed in 1.9.3)

Published 2026-10-03. Last modified 2026-10-06.