vulnerability
Ubuntu: USN-7642-1 (CVE-2023-47627): AIOHTTP vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:P/A:N) | Nov 14, 2023 | Jul 11, 2025 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
Nov 14, 2023
Added
Jul 11, 2025
Modified
Mar 27, 2026
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.
Solution
ubuntu-pro-upgrade-python3-aiohttp
References
- CVE-2023-47627
- https://attackerkb.com/topics/CVE-2023-47627
- CWE-444
- EUVD-EUVD-2023-0004
- UBUNTU-USN-7642-1
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-0004
- https://github.com/aio-libs/aiohttp/commit/d5c12ba890557a575c313bb3017910d7616fce3d
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
- https://www.cve.org/CVERecord?id=CVE-2023-47627
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.