Allocation of Resources Without Limits or Throttling Affecting python-aiohttp package, versions <3.6.2-1ubuntu1+esm6


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.44% (35th percentile)

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  • Snyk IDSNYK-UBUNTU2004-PYTHONAIOHTTP-15926829
  • published24 Jul 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

CVE-2026-34516  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 python-aiohttp to version 3.6.2-1ubuntu1+esm6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-aiohttp package and not the python-aiohttp package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4.

CVSS Base Scores

version 3.1