What is the CVSS score of CVE-2024-33452?

CVE-2024-33452 has a CVSS 3.1 base score of 7.7 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L. EPSS exploitation probability: 0.7%.

Which versions of Lua Nginx Module are affected by CVE-2024-33452?

Organizations using OpenResty lua-nginx-module v.0.10.26 and face notable risk from CVE-2024-33452 rated CVSS 7.7. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2024-33452?

Yes, a public proof-of-concept exploit is available for CVE-2024-33452. Prioritise patching immediately. EPSS: 0.7%.

How to fix or mitigate CVE-2024-33452?

Within 7 days: Identify all affected systems running OpenResty lua-nginx-module v.0.10.26 and and apply vendor patches promptly. Monitor vendor channels for patch availability.

Lua Nginx Module CVE-2024-33452

HIGH

HTTP Request/Response Smuggling (CWE-444)

2025-04-22 cve@mitre.org

Nginx Request Smuggling Information Disclosure Lua Nginx Module Red Hat

7.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.7 HIGH

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Red Hat

7.7 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:38 vuln.today

PoC Detected

Nov 03, 2025 - 20:16 vuln.today

Public exploit code

CVE Published

Apr 22, 2025 - 16:15 nvd

HIGH 7.7

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as HTTP Request/Response Smuggling (CWE-444), which allows attackers to manipulate HTTP request interpretation between frontend and backend servers. 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. Affected products include: Openresty Lua-Nginx-Module.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Enforce strict HTTP parsing, normalize requests at proxy layer, use HTTP/2 end-to-end, reject ambiguous headers.