Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/litespeedtech/openlitespeed/blob/v1.9.2/dist/admin/misc/lsup.
- https://github.com/litespeedtech/openlitespeed/commit/468523ce84388cea9ba6633c26
- https://openlitespeed.org/release-log/version-1-9-x/
- https://www.vulncheck.com/advisories/openlitespeed-before-1.9.3-local-privilege-
FAQ
What is CVE-2026-104474?
CVE-2026-104474 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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 controllin...
How severe is CVE-2026-104474?
CVE-2026-104474 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-104474?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.