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CVE-2025-69225

Published: Jan 5, 2026

Modified: Jan 6, 2026

PUBLISHED

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.

Vendor	Product	Versions
aio-libs	aiohttp	affected `< 3.13.3`

Weaknesses (CWE)

References

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

x_refsource_CONFIRM

https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96

x_refsource_MISC

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