← Vulnerability feed

Vulnerability record · CVE-2026-31386 · published 16 March 2026

CVE-2026-31386: Litespeedtech litespeed web server os command injection vulnerability

Litespeedtech · Litespeed Web Server

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.

8.6 CVSS 4.0 High EPSS 2.1% · top 18.8% CWE-78 · OS command injection
8.6CVSS 4.0 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://jvn.jp/en/jp/JVN22152812/ Third Party Advisory
https://openlitespeed.org/ Product
https://www.litespeedtech.com/products/litespeed-web-server Product

Track CVE-2026-31386 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-5519Litespeedtech openlitespeed improper input validation vulnerabilityThe WebAdmin Console in OpenLiteSpeed before v1.6.5 does not strictly check request URLs, as demonstrated by the "Server Configuration > External App…EPSS 1.2%8.8CVE-2022-0073Litespeedtech openlitespeed improper input validation vulnerabilityImproper Input Validation vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Command Injecti…EPSS 8.8%8.8CVE-2022-0074Litespeedtech openlitespeed untrusted search path vulnerabilityUntrusted Search Path vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server Container allows Privilege Escalation…EPSS 1.2%8.8CVE-2021-26758Litespeedtech openlitespeed improper privilege management vulnerabilityPrivilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute comma…EPSS 2.7%7.5CVE-2025-54939Litespeedtech litespeed web adc allocation without limits vulnerabilityLiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.EPSS 0.77%7.5CVE-2023-40518Litespeedtech openlitespeed vulnerabilityLiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers.EPSS 0.65%7.5CVE-2015-3890Litespeedtech openlitespeed use after free vulnerabilityUse-after-free vulnerability in Open Litespeed before 1.3.10.EPSS 1.1%6.7CVE-2018-19792Litespeedtech openlitespeed memory buffer overflow vulnerabilityThe server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 allows local users to cause a denial of service (buffer overflow) or possibly have unspecified…EPSS 0.43%

Source: NIST National Vulnerability Database (record CVE-2026-31386), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.