High severity · published Apr 22, 2025
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
7.7
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LU
Lua-nginx-module · Openresty
through 0.10.26 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-33452
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-33452
Exploit
https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn
Exploit
https://www.benasin.space/2025/03/18/OpenResty-lua-nginx-module-v0-10-26-HTTP-Request-Smuggling-in-HEAD-requests/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/06/msg00026.html
More from Lua-nginx-module
5.3
CVE-2020-36309
ngx_http_lua_module (aka lua-nginx-module) before 0.10.16 in OpenResty allows unsafe characters in an argument when using the API to mutate a URI, or a request or response header