CVE-2024-52304
published 2024-11-18CVE-2024-52304: 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…
PriorityP347high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
0.58%
43.6th percentile
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.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| aio-libs | aiohttp | < 3.10.11 | 3.10.11 |
| aiohttp | aiohttp | < 3.10.11 | 3.10.11 |
| aiohttp | aiohttp | >= 0 < 3.10.11 | 3.10.11 |
| debian | python-aiohttp | < python-aiohttp 3.8.4-1+deb12u1 (bookworm) | python-aiohttp 3.8.4-1+deb12u1 (bookworm) |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv4.06.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv7.5HIGH
vendor_debian6.3MEDIUM
vendor_redhat6.3MEDIUM
vendor_ubuntu5.3MEDIUM
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OSV
python-aiohttp vulnerabilities
osv·2025-07-17·CVSS 7.5
CVE-2023-47627 [HIGH] python-aiohttp vulnerabilities
python-aiohttp vulnerabilities
Ben Kallus discovered that AIOHTTP did not correctly parse HTTP
headers. A remote attacker could possibly use this issue to perform
request smuggling. This issue only affected Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2023-47627)
Ivan Novikov discovered that AIOHTTP did not properly validate certain
inputs. A remote attacker could possibly use this issue to perform request
smuggling. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2023-49081, CVE-2023-49082)
Paul J. Dorn discovered that AIOHTTP did not properly validate certain
inputs. A remote attacker could possibly use this issue to perform request
smuggling. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and
Ubuntu 24.04 LTS. (CVE-2024-23829)
Takes
GHSA
aiohttp allows request smuggling due to incorrect parsing of chunk extensions
ghsa·2024-11-18
CVE-2024-52304 [MEDIUM] CWE-444 aiohttp allows request smuggling due to incorrect parsing of chunk extensions
aiohttp allows request smuggling due to incorrect parsing of chunk extensions
### Summary
The Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions.
### Impact
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.
Patch: https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71
OSV
CVE-2024-52304: aiohttp is an asynchronous HTTP client/server framework for asyncio and Python
osv·2024-11-18·CVSS 6.3
CVE-2024-52304 [MEDIUM] CVE-2024-52304: aiohttp is an asynchronous HTTP client/server framework for asyncio and Python
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.
OSV
aiohttp allows request smuggling due to incorrect parsing of chunk extensions
osv·2024-11-18
CVE-2024-52304 [MEDIUM] aiohttp allows request smuggling due to incorrect parsing of chunk extensions
aiohttp allows request smuggling due to incorrect parsing of chunk extensions
### Summary
The Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions.
### Impact
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.
Patch: https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71
Ubuntu
AIOHTTP vulnerabilities
vendor_ubuntu·2025-07-17·CVSS 5.3
CVE-2023-49082 [MEDIUM] AIOHTTP vulnerabilities
Title: AIOHTTP vulnerabilities
Summary: Several security issues were fixed in AIOHTTP.
Ben Kallus discovered that AIOHTTP did not correctly parse HTTP
headers. A remote attacker could possibly use this issue to perform
request smuggling. This issue only affected Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2023-47627)
Ivan Novikov discovered that AIOHTTP did not properly validate certain
inputs. A remote attacker could possibly use this issue to perform request
smuggling. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and
Ubuntu 22.04 LTS. (CVE-2023-49081, CVE-2023-49082)
Paul J. Dorn discovered that AIOHTTP did not properly validate certain
inputs. A remote attacker could possibly use this issue to perform request
smuggling. This issue only affected Ubuntu 20.04 LTS, Ubunt
Red Hat
aiohttp: aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions
vendor_redhat·2024-11-18·CVSS 6.3
CVE-2024-52304 [MEDIUM] CWE-444 aiohttp: aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions
aiohttp: aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions
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.
A flaw was found in the aiohttp package. The Python parser parses newlines in chunk extensions incorrectly, which can lead to request smuggling vulnerabilities under certain cond
Debian
CVE-2024-52304: python-aiohttp - aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. ...
vendor_debian·2024·CVSS 6.3
CVE-2024-52304 [MEDIUM] CVE-2024-52304: python-aiohttp - aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. ...
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.
Scope: local
bookworm: resolved (fixed in 3.8.4-1+deb12u1)
bullseye: resolved (fixed in 3.7.4-1+deb11u1)
forky: resolved (fixed in 3.10.11-1)
sid: resolved (fixed in 3.10.11-1)
trixie: resolved (fixed in 3.10.11-1)
No detection rules found.
No public exploits indexed.
2024-11-18
Published