CVE-2023-40518: High severity openlitespeed vulnerability

Published Aug 14, 2023
·
Updated

LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers.

Affected Software

1 affected component
Litespeedtech Openlitespeed<1.7.18

Event History

Aug 14, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2023-40518.

2

What is the severity rating of CVE-2023-40518?

CVE-2023-40518 has a severity rating of 7.5 (high).

3

What is affected by CVE-2023-40518?

LiteSpeed OpenLiteSpeed versions up to 1.7.18 are affected by CVE-2023-40518.

4

What is the impact of CVE-2023-40518?

CVE-2023-40518 allows attackers to bypass HTTP request header validation, potentially leading to various security vulnerabilities.

5

How can I fix CVE-2023-40518?

To fix CVE-2023-40518, upgrade to LiteSpeed OpenLiteSpeed version 1.7.18 or later.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203
CVE-2023-40518 - High severity openlitespeed vulnerability - SecAlerts