CVE-2023-40586: Coraza

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Due to the misuse of `log.Fatalf`, the application using coraza crashed after receiving crafted requests from attackers. The application will immediately crash after receiving a malicious request that triggers an error in `mime.ParseMediaType`. This issue was patched in version 3.0.1.

Affected products

• Coraza Coraza: version 3.0.0 only

Published 2023-08-25. Last modified 2026-06-17.