Vulnerability in Openresty Lua-Nginx-Module

CVE-2024-33452

An issue in OpenResty lua-nginx-module v.0.10.26 and before allows a remote attacker to conduct HTTP request smuggling via a crafted HEAD request.

Vulnerability class: HTTP Request Smuggling

EPSS: 0.008 (52.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-33452?
CVE-2024-33452 is a high-severity vulnerability in Openresty Lua-Nginx-Module, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.7/10. Published 2025-04-22.
How severe is CVE-2024-33452?
High severity. CVSS v3 base score is 7.7 out of 10.
Is CVE-2024-33452 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.