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CVE-2024-33452: An issue in OpenResty lua-nginx-module v.0.10.26 and before allows a remote attacker to conduct HTTP request s

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This week
HIGH 7.7REMOTEWATCHLISTUPGRADE

CVE-2024-33452 is a high-severity flaw (CVSS 7.7) affecting lua-nginx-module. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • High severity
  • Public exploit reference
  • Remotely exploitable, no login, no user action
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.7 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.9% (top 42%)
CISA exploited listNo
WeaknessCWE-444
Published2025-04-22
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: openresty

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

openresty lua-nginx-module UPGRADE
Affected: <= 0.10.26
Fixed in: newer than 0.10.26
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy lua-nginx-module || rpm -q lua-nginx-module || lua-nginx-module --version
2. UPGRADE to newer than 0.10.26 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade lua-nginx-module
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade lua-nginx-module
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-33452?

lua-nginx-module: upgrade to newer than 0.10.26. Exact commands for each OS are on this page.

Is CVE-2024-33452 being exploited?

CVE-2024-33452 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-33452 affect?

CVE-2024-33452 affects lua-nginx-module. Severity is high (CVSS 7.7). 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.

How urgent is CVE-2024-33452?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

nginx vulnerabilities

References

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