Improper Input Validation Affecting python311-aiohttp package, versions <3.9.3-150400.10.46.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.52% (42nd 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-SLES157-PYTHON311AIOHTTP-19779833
  • published14 Sept 2026
  • disclosed7 Sept 2026

Introduced: 7 Sep 2026

CVE-2026-59881  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 python311-aiohttp to version 3.9.3-150400.10.46.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311-aiohttp package and not the python311-aiohttp package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.

CVSS Base Scores

version 3.1