Description
LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case" of %252e%252e double decoding, letting a low-privileged tenant execute code in the context of a different account.
Published: 2026-09-30
Score: 9.4 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 05 Nov 2026 05:15:00 +0000

Type Values Removed Values Added
Title Internal Redirect Validation Flaw in LiteSpeed Web Server

Thu, 05 Nov 2026 03:30:00 +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." LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case" of %252e%252e double decoding, letting a low-privileged tenant execute code in the context of a different account.
References

Sat, 31 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 29 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
References

Wed, 30 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
Title Internal Redirect Validation Flaw in LiteSpeed Web Server

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
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'}


Subscriptions

Litespeedtech Litespeed Web Server
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-05T03:15:00.542Z

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

Link: CVE-2026-93903

cve-icon Vulnrichment

Updated: 2026-09-30T16:30:36.632Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-11-05T04:17:13.083

Link: CVE-2026-93903

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T05:00:14Z

Weaknesses