CVE-2026-104474

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 runs as root on the next update.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-03 00:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-06 16:08 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.1% in the next 30 days (EPSS).
• Severity: 5.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-10-03 00:16 UTC

Last modified

2026-10-06 16:08 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-367

Record status

Deferred

Attack profile CVSS 4.0 · 5.4

Attack vector

Local

Complexity

High

Attack requirements

Present

Privileges needed

Low

User interaction

Passive

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-104474.md and follow it. Check whether this project is affected by CVE-2026-104474. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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