AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below of the Python HTTP parser may allow a request smuggling attack with the presence of non-ASCII characters. 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. This issue is fixed in version 3.13.3.
Cite this page
CVE-2025-69224. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-69224
Use CWE-444, Aiohttp vendor hub and Aiohttp product page to widen CVE-2025-69224 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-22815, CVE-2026-34516 and CVE-2026-34515 for nearby disclosures in the same product family.