CVE-2025-69227

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/6/2026

Last Modified1/14/2026

Sourcenvd

Honeypot Sightings0

Affected Products

aiohttp:aiohttp

Weaknesses (CWE)

CWE-835

References

https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259(security-advisories@github.com)

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23(security-advisories@github.com)

IOC Correlations

No correlations recorded

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