# CVE-2024-38809: Spring Framework DoS via conditional HTTP request

> Attackers can cause denial of service in applications parsing ETags from If-Match or If-None-Match headers by sending malicious requests.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 27 Sep 2024
- **Updated:** 27 Sep 2024
- **Also known as:** DEBIAN-CVE-2024-38809, ECHO-63db-3dde-a92a, GHSA-2rmj-mq67-h97g, ROOT-APP-MAVEN-CVE-2024-38809, UBUNTU-CVE-2024-38809

## What is CVE-2024-38809?

CVE-2024-38809 is a medium-severity denial of service vulnerability in Spring Framework, published on 27 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack.

Users of affected versions should upgrade to the corresponding fixed version.

Users of older, unsupported versions could enforce a size limit on "If-Match" and "If-None-Match" headers, e.g. through a Filter.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2024-38809?

6 open source packages ship an affected version, including org.springframework:spring-web.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.springframework:spring-web` | Maven | All versions | 5.3.38 |
| `org.springframework:spring-web` | Maven | All versions | 5.3.38 |
| `org.springframework:spring-web` | Maven | From 6.0.0 | 6.0.23 |
| `org.springframework:spring-web` | Maven | From 6.0.0 | 6.0.23 |
| `org.springframework:spring-web` | Maven | From 6.1.0 | 6.1.12 |
| `org.springframework:spring-web` | Maven | From 6.1.0 | 6.1.12 |

## How do I fix CVE-2024-38809?

Upgrade org.springframework:spring-web to a fixed version for your release line: 5.3.38, 6.0.23 or 6.1.12.

## Is CVE-2024-38809 being exploited?

There is no known exploitation of CVE-2024-38809 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-38809 and fix it if it is affected.

What it is: CVE-2024-38809 is a medium-severity denial of service vulnerability in Spring Framework, published on 27 Sep 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-2024-38809 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.springframework:spring-web (Maven): affected all versions; fixed in 5.3.38
- org.springframework:spring-web (Maven): affected all versions; fixed in 5.3.38
- org.springframework:spring-web (Maven): affected from 6.0.0; fixed in 6.0.23
- org.springframework:spring-web (Maven): affected from 6.0.0; fixed in 6.0.23
- org.springframework:spring-web (Maven): affected from 6.1.0; fixed in 6.1.12
- org.springframework:spring-web (Maven): affected from 6.1.0; fixed in 6.1.12

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-2024-38809/ (Markdown: https://insights.sbomify.com/CVE-2024-38809/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-38809
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-38809
- OSV: https://osv.dev/vulnerability/CVE-2024-38809

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-38809/
Summaries are generated and may contain mistakes; the official description above is the record.