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.
References
Configurations
History
14 Aug 2025, 20:40
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| First Time |
Aiohttp aiohttp
Aiohttp |
|
| References | () https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9548-qrrj-x5pj - Vendor Advisory | |
| References | () https://github.com/aio-libs/aiohttp/commit/e8d774f635dc6d1cd3174d0e38891da5de0e2b6a - Patch | |
| CPE | cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:* |
14 Jul 2025, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-07-14 21:15
Updated : 2025-08-14 20:40
NVD link : CVE-2025-53643
Mitre link : CVE-2025-53643
JSON object : View
Products Affected
aiohttp
- aiohttp
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')