High severity · published Nov 18, 2024
CVE-2024-52304
aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
aiohttp · aio-libs
< 3.10.11 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-52304
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-52304
Patch
https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71
Vendor Advisory
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html
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