CVE-2026-93903

State: Published
Severity: 9.4 Critical
Published: Sep 30, 2026
Updated: Oct 29, 2026
Reserved: Sep 18, 2026

Description

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

Scores

CVSS	Score	Vector	Source
4.0	9.4 Critical	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	mitre

Weaknesses

CWE-174 Double Decoding of the Same Data

Affected Products

Product	Versions
LiteSpeed Web Serverlitespeedtech	before 6.3.7 build 1Affected

References

https://www.litespeedtech.com/products/litespeed-web-server/release-log
https://docs.litespeedtech.com/lsws/changelog/#v6-3-7-build-1
https://github.com/Tautvydas-Aleliunas/CVE-2026-93903

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