# CVE-2024-31079: NGINX HTTP/3 QUIC vulnerability

> Attackers can crash NGINX worker processes via crafted HTTP/3 requests during connection draining, requiring the QUIC module to be enabled.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 May 2024
- **Updated:** 13 Feb 2025
- **Also known as:** BIT-nginx-2024-31079, BIT-nginx-gateway-2024-31079, DEBIAN-CVE-2024-31079

## What is CVE-2024-31079?

CVE-2024-31079 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 29 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2024-31079?

2 open source packages ship an affected version, including nginx and nginx-gateway. It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `nginx` | Bitnami | From 1.25.0 | 1.26.1 |
| `nginx-gateway` | Bitnami | From 1.25.0 | 1.26.1 |

Products: F5 Nginx Open Source, F5 Nginx Plus, Fedoraproject Fedora.

## How do I fix CVE-2024-31079?

Upgrade nginx to 1.26.1 or later.

## Is CVE-2024-31079 being exploited?

There is no known exploitation of CVE-2024-31079 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2026-27654](https://insights.sbomify.com/CVE-2026-27654/): NGINX ngx_http_dav_module vulnerability (high 8.8)
- [CVE-2026-27651](https://insights.sbomify.com/CVE-2026-27651/): NGINX ngx_mail_auth_http_module vulnerability (high 8.7)
- [CVE-2026-27784](https://insights.sbomify.com/CVE-2026-27784/): NGINX ngx_http_mp4_module vulnerability (high 8.5)
- [CVE-2026-32647](https://insights.sbomify.com/CVE-2026-32647/): NGINX ngx_http_mp4_module vulnerability (high 8.5)
- [CVE-2024-24989](https://insights.sbomify.com/CVE-2024-24989/): NGINX HTTP/3 QUIC vulnerability (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-31079 and fix it if it is affected.

What it is: CVE-2024-31079 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 29 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-31079 in the wild and no public exploit code.

Affected packages and fixed versions:
- nginx (Bitnami): affected from 1.25.0; fixed in 1.26.1
- nginx-gateway (Bitnami): affected from 1.25.0; fixed in 1.26.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-31079/ (Markdown: https://insights.sbomify.com/CVE-2024-31079/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-31079
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-31079
- OSV: https://osv.dev/vulnerability/CVE-2024-31079

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-31079/
Summaries are generated and may contain mistakes; the official description above is the record.