HTTP Request Smuggling Affecting python-aiohttp package, versions <3.11.16-1ubuntu0.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-UBUNTU2510-PYTHONAIOHTTP-14888977
  • published5 Feb 2026
  • disclosed6 Jan 2026

Introduced: 6 Jan 2026

CVE-2025-69225  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Ubuntu:25.10 python-aiohttp to version 3.11.16-1ubuntu0.1 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:25.10 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.

CVSS Base Scores

version 3.1