1.7
Low
CVE-2025-53643 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 3.12.14, the Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. 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 3.12.14 contains a patch for this issue.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| aiohttp 3.12 | earliest → < 3.12.14 | 3.12.14 |
References
- github.com github.com
- github.com github.com
Timeline
- Published
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