CVE-2023-40518 Details
Description
LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers.
A vulnerability exists in LiteSpeed OpenLiteSpeed versions prior to 1.7.18 due to inadequate validation of HTTP request headers. This flaw could potentially be exploited to manipulate header information, leading to various types of attacks such as request header smuggling over HTTP/2 and HTTP/3.
Users can upgrade to LiteSpeed OpenLiteSpeed version 1.7.18 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 9, 2024References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://openlitespeed.org/release-log/version-1-7-x/ | CVE | Release Notes |
| https://www.litespeedtech.com/products/litespeed-web-server/release-log | CVE | Release Notes |
| https://openlitespeed.org/release-log/version-1-7-x/ | [email protected] | Release Notes |
| https://www.litespeedtech.com/products/litespeed-web-server/release-log | [email protected] | Release Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| litespeedtech openlitespeed | < 1.7.18 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Aug 22, 2023 | Initial Analysis | [email protected] |