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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (55.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portswigger.net/research/http-desync-attacks-request-smuggling-reborn (Exploit, Third Party Advisory)
- www.benasin.space/2025/03/18/OpenResty-lua-nginx-module-v0-10-26-HTTP-Request-S… (Exploit, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
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.