CVE-2026-104474
OpenLiteSpeed before 1.9.3 contains a local privilege escalation vulnerability in…
- Risk score
- 40/100
- CVSS
- 6.7 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 3 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 ru…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.9.3 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.7 medium
References
- https://github.com/litespeedtech/openlitespeed/blob/v1.9.2/dist/admin/misc/lsup.sh#L538
- https://github.com/litespeedtech/openlitespeed/commit/468523ce84388cea9ba6633c26517bc05b3e2bc1
- https://openlitespeed.org/release-log/version-1-9-x/
- https://www.vulncheck.com/advisories/openlitespeed-before-1.9.3-local-privilege-escalation-via-lsup-sh-auto-update
Original 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.
Last activity 3 Oct 2026. Patch Forecast updates every hour.