CVE-2026-93903 PUBLISHED

Assigner: mitre
Reserved: 18.09.2026 Published: 30.09.2026 Updated: 30.09.2026

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

CVSS 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
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	litespeedtech
Product	LiteSpeed Web Server
Versions	Default: unaffected affected from 0 to 6.3.7 build 1 (excl.)