Deserialization of Untrusted Data Affecting python313-aiohttp package, versions <3.11.16-160000.5.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.5% (40th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES1600-PYTHON313AIOHTTP-17439523
  • published24 Jun 2026
  • disclosed19 Jun 2026

Introduced: 19 Jun 2026

CVE-2026-34993  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 python313-aiohttp to version 3.11.16-160000.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python313-aiohttp package and not the python313-aiohttp package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1