AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields
At a glance
Severity
LOW 2.7
EPSS
EPSS 0.28 % · percentile 21 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Analyzed
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.
