HTTP Response Splitting Affecting py3-aiohttp-auto package, versions <3.14.1-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-PY3AIOHTTPAUTO-19130282
  • published21 Aug 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

CVE-2026-34519  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

Upgrade Minimos:latest py3-aiohttp-auto to version 3.14.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-aiohttp-auto package and not the py3-aiohttp-auto package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.

CVSS Base Scores

version 3.1