En resumen
- CVE-2025-53643 es una vulnerabilidad ALTO (CVSS 7.5) que afecta a aiohttp, aiohttp (aiohttp).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.36%, mayor que el 29.3% de las vulnerabilidades.
- Solución: actualizar a 3.12.14 o posterior.
| Package | Affected versions | Patched versions |
|---|
| aiohttp PyPI | < 3.12.14
| 3.12.14
|
| aiohttp | < 3.12.14
| 3.12.14
|
Description
Summary
The Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request.
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/e8d774f635dc6d1cd3174d0e38891da5de0e2b6a
NVD 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.
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