Vulnerability in Aio-libs Aiohttp

CVE-2025-69224

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…

Vulnerability class: HTTP Request Smuggling

EPSS: 0.000 (11.8th percentile) — read the EPSS interpretation.

Affected products

Aio-libs Aiohttp — versions < 3.13.3

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

References

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-69f9-5gxw-wvc2 (x_refsource_CONFIRM)
https://github.com/aio-libs/aiohttp/commit/32677f2adfd907420c078dda6b79225c6f4ebce0 (x_refsource_MISC)