---
title: "CVE-2026-34993\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-34993?format=md
keywords: index, follow
---

# CVE-2026-34993

Publication date 2 June 2026

Last updated 18 June 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**6.4 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-34993?format=md#impact-score)

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## 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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| python-aiohttp | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.4 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | High |
  | Privileges required | High |
  | User interaction | Required |
  | Scope | Changed |
  | Confidentiality impact | Low |
  | Integrity impact | High |
  | Availability impact | Low |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.4 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34993)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-34993)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-34993)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-34993)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-34993>