CVE-2023-47627

Public Exploit
Request smuggling in aiohttp

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory github.com
Affected: aio-libs aiohttp
Published at:
Updated at:

References

Link Tags
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg vendor advisory exploit
https://github.com/aio-libs/aiohttp/commit/d5c12ba890557a575c313bb3017910d7616fce3d patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VDKQ6HM3KNDU4OQI476ZWT4O7DMSIT35/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQYQL6WV535EEKSNH7KRARLLMOW5WXDM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUSJVQ7OQ55RWL4XAX2F5EZ73N4ZSH6U/

Frequently Asked Questions

What is the severity of CVE-2023-47627?
CVE-2023-47627 has been scored as a medium severity vulnerability.
How to fix CVE-2023-47627?
To fix CVE-2023-47627, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-47627 being actively exploited in the wild?
It is possible that CVE-2023-47627 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-47627?
CVE-2023-47627 affects aio-libs aiohttp.
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