Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python311-aiohttp package, versions <3.9.3-150400.10.36.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.4% (32nd 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-SLES155-PYTHON311AIOHTTP-15457926
  • published11 Mar 2026
  • disclosed10 Mar 2026

Introduced: 10 Mar 2026

CVE-2025-69227  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 python311-aiohttp to version 3.9.3-150400.10.36.1 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:15.5 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.

CVSS Base Scores

version 3.1