high8.2
CVE-2026-111066
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python.
Impact
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | aiohttp | >= 2.0.0, < 3.14.4 | 3.14.4 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-9xw5-w5jj-pvcg
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9xw5-w5jj-pvcg
- https://nvd.nist.gov/vuln/detail/CVE-2026-111066
- https://github.com/aio-libs/aiohttp/commit/2d94633b7f1b4c1ba07d647b629a8440652b2d09
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4