[Japanese]

JVNDB-2026-000037

OpenLiteSpeed and LSWS Enterprise vulnerable to OS command injection

Overview

OpenLiteSpeed and LSWS Enterprise provided by LiteSpeed Technologies contain the following vulnerability.
  • OS command injection (CWE-78) - CVE-2026-31386
Daisuke Nakayama of Mizuho Financial Group, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.2 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: High
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS v4 Severity
Base Metrics: 8.6 (High) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): High
  • User Interaction (UI): None
    • Vulnerable System Impact
  • Confidentiality Impact (VC): High
  • Integrity Impact (VI): High
  • Availability Impact (VA): High
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
Affected Products


LiteSpeed Technologies
  • LSWS Enterprise all versions
  • OpenLiteSpeed all versions

Impact

An arbitrary OS command may be executed by an attacker with the administrative privilege.
Solution

[Apply the Workaround]
The developer recommends users apply the following workaround.
  • Restrict access to the port used by the WebAdmin console and/or allow connections only from trusted IP addresses.
Vendor Information

LiteSpeed Technologies
CWE (What is CWE?)

  1. OS Command Injection(CWE-78) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2026-31386
References

  1. JVN : JVN#22152812
Revision History

  • [2026/03/16]
      Web page was published

Date Public2026/03/16
Date First Published2026/03/16
Date Last Updated2026/03/16