PT-2026-103276 · Litespeed Technologies · Litespeed Web Server

CVE-2026-93903

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Published

2026-09-30

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Updated

2026-10-01

CVSS v4.0

9.4

Critical

VectorAV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Name of the Vulnerable Software and Affected Versions LiteSpeed Web Server (LSWS) versions prior to 6.3.7 build 1
Description LiteSpeed Web Server (LSWS) mishandles internal redirect URL validation in a specific corner case. This issue involves double decoding of the same data, which can lead to security bypasses or unauthorized access.
Recommendations Update LiteSpeed Web Server (LSWS) to version 6.3.7 build 1 or later.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-93903

Affected Products

Litespeed Web Server