AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post() method, an attacker may be able to freeze the server by exhausting the memory. This issue is fixed in version 3.13.3.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/aio-libs/aiohttp/commit/b7dbd35375aedbcd712cbae8ad513d56d11cce60 Patch
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6jhg-hg63-jvvf Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.6 · aiohttpNVD modified 2026-10-11 20:10
Affected (CPE criteria) 1
cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*