CVE-2026-31386

7.2

LiteSpeed Technologies · OpenLiteSpeed and LSWS Enterprise

LiteSpeed Technologies OpenLiteSpeed and LSWS Enterprise are affected by an OS command injection vulnerability, allowing arbitrary command execution by authenticated administrators.

Executive summary

A critical OS command injection vulnerability in LiteSpeed Technologies web servers could allow an authenticated administrator to execute arbitrary commands on the underlying host.

Vulnerability

This vulnerability is a classic OS command injection (CWE-78) flaw. It allows an attacker who has already obtained administrative privileges to inject and execute arbitrary OS commands, effectively compromising the server environment.

Business impact

The ability for an administrator to execute arbitrary OS commands represents a total loss of system integrity and confidentiality. Given the CVSS score of 7.2, this is a high-severity issue that could lead to full server takeover, data exfiltration, or the deployment of persistent malicious backdoors within the web infrastructure.

Remediation

Immediate Action: Administrators should monitor the official LiteSpeed Technologies security advisories and JVN records for the release of patched versions and apply them as soon as they become available.

Proactive Monitoring: Review administrative access logs for suspicious activity and monitor server process execution for unexpected spawned shell commands or irregular child processes.

Compensating Controls: Restrict access to the administrative management interface to trusted IP addresses only, and employ a robust Web Application Firewall (WAF) to detect and block common command injection syntax.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

Given the severity of potential OS command injection, all organizations utilizing LiteSpeed Technologies software should prioritize the identification of current deployment versions. Since administrative access is required, ensure that the management interface is strictly hardened and access is limited to authorized personnel. Apply security updates immediately upon release to mitigate the risk of unauthorized system-level code execution.

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