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6.3 Medium

CVE-2024-52304 aiohttp is an asynchronous HTTP client/server framework for asyncio and Python

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.

Affected products and versions

Product Affected versions Fixed in
aiohttp 3.10 earliest → < 3.10.11 3.10.11
aiohttp 3.10 earliest → < 3.10.11 3.10.11

References

Timeline

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Other CVEs of aiohttp

The 53 CVEs of aiohttp →
CVE-2026-111750 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python 6.3 Medium CVE-2026-111749 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python 2.3 Low CVE-2026-111748 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python 6.3 Medium CVE-2026-111066 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python 8.2 High
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