OpenLiteSpeed before 1.9.3 Local Privilege Escalation via lsup.sh Auto-Update
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.
CVE-2026-104474
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-104474
openlitespeed
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/litespeedtech/openlitespeed",
"vendor": "litespeedtech",
"product": "openlitespeed",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.9.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.9.3",
"versionType": "semver"
}
],
"packageURL": "pkg:github/litespeedtech/openlitespeed",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-104474
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #8671 · Revision 1
- Added to Heist Feed
- Publisher date