CVE-2025-53643

CVE Details

Release Date:	2025-07-14
Impact:	Low	What is this?

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.

See more information about CVE-2025-53643 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	3.7
Vector String:	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Version:	3.1
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	Low
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (ol-automation-manager)	OLAMSA-2025-0016	2025-10-01
Oracle Linux version 8 (ol-automation-manager)	OLAMSA-2025-0017	2025-10-01
Oracle Linux version 8 (python-aiohttp)	OLAMSA-2025-0016	2025-10-01
Oracle Linux version 9 (python-aiohttp)	OLAMSA-2025-0018	2025-10-02
Oracle Linux version 9 (python-django)	OLAMSA-2025-0018	2025-10-02