cve/2023/CVE-2023-47627.md

### [CVE-2023-47627](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-47627)
![](https://img.shields.io/static/v1?label=Product&message=aiohttp&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20%3C%203.8.6%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-444%3A%20Inconsistent%20Interpretation%20of%20HTTP%20Requests%20('HTTP%20Request%2FResponse%20Smuggling')&color=brighgreen)

### Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. The HTTP parser in AIOHTTP has numerous problems with header parsing, which could lead to request smuggling. This parser is only used when AIOHTTP_NO_EXTENSIONS is enabled (or not using a prebuilt wheel). These bugs have been addressed in commit `d5c12ba89` which has been included in release version 3.8.6. Users are advised to upgrade. There are no known workarounds for these issues.

### POC

#### Reference
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg

#### Github
No PoCs found on GitHub currently.