dbcve.org
Nginx Open SourceWeb server / proxy · F5

CVE-2024-24989

HIGH · 7.5 CVSS v3.1 Published 2024-02-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate. Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to Support for QUIC and HTTP/3 https://nginx.org/en/docs/quic.html . NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A denial-of-service vulnerability exists in NGINX Plus and NGINX OSS when the experimental HTTP/3 QUIC module is enabled. Certain undisclosed requests can cause NGINX worker processes to terminate unexpectedly, leading to service disruption.

MitigationDisable the HTTP/3 QUIC module if not required, or monitor NGINX security advisories for patches and apply them promptly.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nginx Open SourceWeb server / proxy
Affected:= 1.25.3
Nginx PlusWeb server / proxy
Affected:= r31

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify NGINX version
    Run 'nginx -v' or 'nginx -V' to see the installed version. For NGINX Plus, check /etc/nginx/plus.yml or run 'nginx -V 2>&1 | grep -i plus'
    Affected if Version is 1.25.3 (Open Source) or r31 (Plus)
  2. Verify HTTP/3 QUIC module is compiled in
    Run 'nginx -V 2>&1' and look for '--with-http_v3_module' in the configure arguments
    Affected if The output contains '--with-http_v3_module'
  3. Check if QUIC is enabled in configuration
    Examine NGINX config files (typically /etc/nginx/nginx.conf and included files) for 'listen' directives with 'http3' parameter, or 'quic' directive in http/server blocks
    Affected if Configuration contains 'http3' on a listen directive or 'quic' settings in the config

You are affected if NGINX version is exactly 1.25.3 (OSS) or r31 (Plus) AND the HTTP/3 QUIC module is both compiled in and actively configured/enabled in your NGINX configuration.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Disable the HTTP/3 QUIC module if not required, or monitor NGINX security advisories for patches and apply them promptly.

Fix this in Nginx Open Source Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-24989 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data