CVE-2023-49081

Public Exploit
aiohttp's ClientSession is vulnerable to CRLF injection via version

Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation made it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or create a new HTTP request if the attacker controls the HTTP version. The vulnerability only occurs if the attacker can control the HTTP version of the request. This issue has been patched in version 3.9.0.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.24%
Vendor Advisory github.com
Affected: aio-libs aiohttp
Published at:
Updated at:

References

Link Tags
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-q3qx-c6g2-7pw2 exploit vendor advisory
https://github.com/aio-libs/aiohttp/pull/7835/files
https://github.com/aio-libs/aiohttp/commit/1e86b777e61cf4eefc7d92fa57fa19dcc676013b
https://gist.github.com/jnovikov/184afb593d9c2114d77f508e0ccd508e third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-49081?
CVE-2023-49081 has been scored as a high severity vulnerability.
How to fix CVE-2023-49081?
To fix CVE-2023-49081, 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-2023-49081 being actively exploited in the wild?
It is possible that CVE-2023-49081 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-2023-49081?
CVE-2023-49081 affects aio-libs aiohttp.
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