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Vulnerabilities

Vulnerability · CVE-2026-31386

OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain an OS command injection vulnerability.

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · litespeed web server

Check if you run it

No confirmed exploitation is on record for CVE-2026-31386. EPSS is 2.21%. Act only if a listed version of litespeed web server is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.21%
Remediation
Advisory link
Affected products
cpe litespeedtech/litespeed web server · cpe litespeedtech/openlitespeed

OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain an OS command injection vulnerability. An arbitrary OS command may be executed by an attacker with the administrative privilege.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe litespeedtech/litespeed web serverversion unspecified
  • cpe litespeedtech/openlitespeedversion unspecified

How to fix CVE-2026-31386

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-31386. EPSS is 2.21%. Act only if a listed version of litespeed web server is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 2.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2026 · NIST NVD

    Detected

    OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain an OS command injection vulnerability. An arbitrary OS command may be executed by an attacker with the administrative privilege.

  2. Jun 17, 2026 · NIST NVD

    Updated

    OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain an OS command injection vulnerability. An arbitrary OS command may be executed by an attacker with the administrative privilege.

Sources

  • CVE.orgVulnerability recordCVE-2026-31386

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31386

    30-day exploitation probability 2.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-31386

    OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain an OS command injection vulnerability. An arbitrary OS command may be executed by an attacker with the administrative privilege.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.