# CVE-2024-30251: python3-aiohttp: aiohttp is an asynchronous HTTP client/server framework for asyncio and Python

CVE-2024-30251 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2024-30251, released May 2, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-30251
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0109
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 2, 2024

## Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In affected versions an attacker can send a specially crafted POST (multipart/form-data) request. When the aiohttp server processes it, the server will enter an infinite loop and be unable to process any further requests. An attacker can stop the application from serving requests after sending a single request. This issue has been addressed in version 3.9.4. Users are advised to upgrade. Users unable to upgrade may manually apply a patch to their systems. Please see the linked GHSA for instructions.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-aiohttp Debian 12.15 (bookworm) | 3.8.4-1+deb12u1 | [DEBIAN-CVE-2024-30251](https://patchblox.com/security/data/fix/linux/debian-cve-2024-30251.md) | May 2, 2024 |
| Linux | python-aiohttp Debian 13.5 (trixie) | 3.9.5-1 | [DEBIAN-CVE-2024-30251](https://patchblox.com/security/data/fix/linux/debian-cve-2024-30251.md) | May 2, 2024 |
| Linux | python-aiohttp Debian 14 | 3.9.5-1 | [DEBIAN-CVE-2024-30251](https://patchblox.com/security/data/fix/linux/debian-cve-2024-30251.md) | May 2, 2024 |
| Linux | python-aiohttp opensuse-leap 15.6 | 3.9.3-150400.10.30.1 | [SUSE-SU-2024:4327-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4327-1.md) | Dec 16, 2024 |
| Linux | python-aiohttp sles 15.6 | 3.6.0-150100.3.21.1 | [SUSE-SU-2024:4328-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4328-1.md) | Dec 16, 2024 |
| Linux | python3-aiohttp Ubuntu 22.04.1 LTS (jammy) | 3.8.1-4ubuntu0.2+esm1 | [python3-aiohttp 3.8.1-4ubuntu0.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-aiohttp-3.8.1-4ubuntu0.2-esm1.md) | Nov 18, 2024 |
| Linux | python3-aiohttp Ubuntu 24.04.5 LTS (noble) | 3.9.1-1ubuntu0.1+esm1 | [python3-aiohttp 3.9.1-1ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-aiohttp-3.9.1-1ubuntu0.1-esm1.md) | Nov 18, 2024 |

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Data as of 2026-11-11T19:49:26Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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