CVE-2025-69225

MEDIUM

5.3

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/6/2026

Last Modified1/14/2026

Sourcenvd

Honeypot Sightings0

Affected Products

aiohttp:aiohttp

Weaknesses (CWE)

CWE-444

References

https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96(security-advisories@github.com)

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mqqc-3gqh-h2x8(security-advisories@github.com)

IOC Correlations

No correlations recorded

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