CVE-2026-93903 - Vulnerability Details - OpenCVE

LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case."

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

litespeedtech

LiteSpeed Web Server

unaffected

Version	Status	Constraints
`0`	affected	< 6.3.7 build 1

No data.

No data.

No data.

Project Subscriptions

Vendors	Products
Litespeedtech Subscribe	Litespeed Web Server Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://docs.litespeedtech.com/lsws/changelog/#v6-3-7-build-1
https://www.litespeedtech.com/products/litespeed-web-server/release-log

History

Wed, 30 Sep 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case."
First Time appeared		Litespeedtech Litespeedtech litespeed Web Server
Weaknesses		CWE-174
CPEs		cpe:2.3:a:litespeedtech:litespeed_web_server::::::::
Vendors & Products		Litespeedtech Litespeedtech litespeed Web Server
References		https://docs.litespeedtech.com/lsws/changelog/#v6-3-7-build-1 https://www.litespeedtech.com/products/litespeed-web-server/release-log
Metrics		cvssV4_0 `{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-30T13:44:11.915Z

Updated: 2026-09-30T16:30:52.184Z

Reserved: 2026-09-18T20:40:05.869Z

Link: CVE-2026-93903

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-30T14:17:37.060

Modified: 2026-09-30T14:17:37.060

Link: CVE-2026-93903

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-174

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