# CVE-2026-34993: python-aiohttp: AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python

CVE-2026-34993 is fixed in 3 products on 1 platform, first by SUSE-SU-2026:22173-1, released June 19, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-34993
- Priority: High
- CVSS: 7.3 (high)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 2, 2026

## Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-aiohttp Debian 12.15 (bookworm) | 3.8.4-1+deb12u2 | [DEBIAN-CVE-2026-34993](https://patchblox.com/security/data/fix/linux/debian-cve-2026-34993.md) | Jun 24, 2026 |
| Linux | python-aiohttp Debian 14 | 3.14.0-1 | [DEBIAN-CVE-2026-34993](https://patchblox.com/security/data/fix/linux/debian-cve-2026-34993.md) | Jun 24, 2026 |
| Linux | python-aiohttp opensuse-leap 16.0 | 3.11.16-160000.5.1 | [OPENSUSE-SU-2026:21098-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21098-1.md) | Jun 19, 2026 |
| Linux | python-aiohttp sles 15.6 | 3.9.3-150400.10.43.1 | [SUSE-SU-2026:3207-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3207-1.md) | Jul 23, 2026 |
| Linux | python-aiohttp sles 15.7 | 3.9.3-150400.10.43.1 | [SUSE-SU-2026:3207-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3207-1.md) | Jul 23, 2026 |
| Linux | python-aiohttp sles 16.0 | 3.11.16-160000.5.1 | [SUSE-SU-2026:22173-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22173-1.md) | Jun 19, 2026 |
| Linux | python39-oci-sdk ol 9 | 0:2.187.0-1.0.5.el9 | [ELSA-2026-604898](https://patchblox.com/security/data/fix/linux/elsa-2026-604898.md) | Nov 7, 2026 |
| Linux | python39-oci-sdk-docs ol 9 | 0:2.187.0-1.0.5.el9 | [ELSA-2026-604898](https://patchblox.com/security/data/fix/linux/elsa-2026-604898.md) | Nov 7, 2026 |

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Data as of 2026-11-08T06:59:42Z 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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