CVE-2023-47627

5.3 MEDIUM
Published: November 14, 2023 Modified: November 03, 2025

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Vendor Advisory

11 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.3 / 10.0
EPSS (Exploit Probability)
0.3%
49th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

aiohttp