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.
History

Mon, 05 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 02 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
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.
Title OpenLiteSpeed before 1.9.3 Local Privilege Escalation via lsup.sh Auto-Update
First Time appeared Litespeedtech
Litespeedtech openlitespeed
Weaknesses CWE-367
CPEs cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:*
Vendors & Products Litespeedtech
Litespeedtech openlitespeed
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 5.4, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-02T23:28:45.481Z

Updated: 2026-10-05T14:50:08.677Z

Reserved: 2026-10-02T00:55:58.387Z

Link: CVE-2026-104474

cve-icon Vulnrichment

Updated: 2026-10-05T14:50:02.622Z

cve-icon NVD

Status : Deferred

Published: 2026-10-03T00:16:35.413

Modified: 2026-10-06T16:08:43.180

Link: CVE-2026-104474

cve-icon Redhat

No data.