VDB
DEBIAN-CVE-2025-53643
DEBIAN-CVE-2025-53643
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | python-aiohttp | 3.13.5-1, 3.13.3-1, 3.12.15-1 |
| Debian:14 | python-aiohttp | 0, 3.11.16-1, 0 |
| Debian:13 | python-aiohttp | 3.11.16-1, 3.12.15-1, 3.13.0-1 |
| Debian:11 | python-aiohttp | 3.13.5-1, 3.7.4-1, 3.7.4-1 |
Timeline
- Jul 14, 2025 CVE Published
- Apr 28, 2026 CVE Updated