Description

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.

INFO

Published Date :

2026-01-05T23:19:31.396Z

Last Modified :

2026-01-06T19:02:48.192Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-69227 vulnerability.

Vendors Products
Aio-libs
  • Aiohttp Session
Aio-libs Project
  • Aiohttp
Aiohttp
  • Aio-libs
  • Aiohttp
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-69227.

URL Resource
https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259 cve-icon cve-icon cve-icon
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-69227 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-69227 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact