CVE Catalog

CVE-2026-104474

MediumCVSS 6.7
Published: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.09%

0th percentile - higher than 0% of all known CVEs

Summary

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.

Risk Assessment

An attacker with access to the web process can execute arbitrary code as root, taking full control of the server. This is a critical security threat.

Recommendation

Update OpenLiteSpeed to version 1.9.3 or later. Check permissions on /usr/local/lsws/autoupdate/ and restrict access for the nobody user.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS