CVE-2026-93903

critical · 9.4

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

9.4

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-09-30

Published

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/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:X/V:X/RE:X/U:X

Weaknesses

CWE-174

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-93903