Is CVE-2026-31386 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-31386 being exploited in the wild.

How severe is CVE-2026-31386?

High severity, with a CVSS score of 7.2, published 16 March 2026.

Which products and versions are affected?

LiteSpeed Technologies LiteSpeed Web Server Enterprise up to but excluding 6.3.5.

Is there a fix for CVE-2026-31386?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-31386 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-31386?

Check whether you run LiteSpeed Technologies LiteSpeed Web Server Enterprise, Litespeedtech Litespeed Web Server or Litespeedtech Openlitespeed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-31386: LiteSpeed Technologies OpenLiteSpeed and LSWS Enterprise OS command injection

CVE-2026-31386 · Severity: high · CVSS 7.2 · Published 2026-03-16

LiteSpeed Technologies' OpenLiteSpeed and LSWS Enterprise web servers, which are used to host high-performance websites, contain a vulnerability that allows an administrator to execute unauthorized system commands. If exploited, an attacker with administrative access could take full control of the underlying server, potentially leading to data theft or service disruption. Organizations should restrict access to the WebAdmin console to trusted IP addresses and update to the latest software versions.

Vendors: LiteSpeed Technologies.

Quick answers

Is CVE-2026-31386 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-31386 being exploited in the wild.
How severe is CVE-2026-31386?: High severity, with a CVSS score of 7.2, published 16 March 2026.
Which products and versions are affected?: LiteSpeed Technologies LiteSpeed Web Server Enterprise up to but excluding 6.3.5.
Is there a fix for CVE-2026-31386?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-31386 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-31386?: Check whether you run LiteSpeed Technologies LiteSpeed Web Server Enterprise, Litespeedtech Litespeed Web Server or Litespeedtech Openlitespeed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in LiteSpeed Technologies' OpenLiteSpeed (up to 1.9.0) and LSWS Enterprise (up to 6.3.4). The flaw resides within the WebAdmin console, where improper neutralization of special elements allows an attacker with high privileges (administrative access) to execute arbitrary OS commands via the network. While the attack requires authentication, successful exploitation results in full compromise of the host system (High Confidentiality, Integrity, and Availability impact). A workaround involves restricting access to the WebAdmin console port and implementing IP-based access control lists. Fixed versions include LSWS Enterprise 6.3.5.

Affected products

LiteSpeed Technologies OpenLiteSpeed up to and including 1.9.0
LiteSpeed Technologies LiteSpeed Web Server Enterprise up to but excluding 6.3.5

Timeline

2026-03-16: disclosed
2026-03-16: advisory

References

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