# CVE-2022-33124: Denial of service in n/a

> AIOHTTP may raise an unhandled ValueError for invalid IPv6 URLs, potentially causing a denial of service in applications lacking exception handling.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Jun 2022
- **Updated:** 3 Aug 2024

## What is CVE-2022-33124?

CVE-2022-33124 is a medium-severity denial of service vulnerability in n/a, published on 22 Jun 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

AIOHTTP 3.8.1 can report a "ValueError: Invalid IPv6 URL" outcome, which can lead to a Denial of Service (DoS). NOTE: multiple third parties dispute this issue because there is no example of a context in which denial of service would occur, and many common contexts have exception handing in the calling application

## Which versions are affected by CVE-2022-33124?

It affects 1 product.


Products: Aiohttp Aiohttp.

## How do I fix CVE-2022-33124?

No fix has been published for CVE-2022-33124 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-33124 being exploited?

There is no known exploitation of CVE-2022-33124 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-52303](https://insights.sbomify.com/CVE-2024-52303/): aiohttp memory leak when middleware is enabled when requesting a resource with a non-allowed method (high 8.7)
- [CVE-2025-69223](https://insights.sbomify.com/CVE-2025-69223/): AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb (high 7.5)
- [CVE-2024-30251](https://insights.sbomify.com/CVE-2024-30251/): Denial of service when trying to parse malformed POST requests in aiohttp (high 7.5)
- [CVE-2023-49081](https://insights.sbomify.com/CVE-2023-49081/): aiohttp's ClientSession is vulnerable to CRLF injection via version (high 7.2)
- [CVE-2026-22815](https://insights.sbomify.com/CVE-2026-22815/): AIOHTTP: Uncapped memory usage possible through aiohttp allowing unlimited trailer headers (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-33124 and fix it if it is affected.

What it is: CVE-2022-33124 is a medium-severity denial of service vulnerability in n/a, published on 22 Jun 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-33124 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2022-33124/ (Markdown: https://insights.sbomify.com/CVE-2022-33124/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-33124
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-33124
- OSV: https://osv.dev/vulnerability/CVE-2022-33124

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-33124/
Summaries are generated and may contain mistakes; the official description above is the record.