CVE-2026-104474
MEDIUMCVSS 6.7Description
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.
Timeline
Published:October 3rd, 2026 12:16 AM
Last modified:October 5th, 2026 3:17 PM
CVSS Scoring
CVSS v3: 6.7 (MEDIUM)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- 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
Source: NIST NVD · Data may lag official sources by up to one minute