GHSA-5wr8-gcqf-gqf3

ghsaUSosv

aiohttp server lacks an initial request/header timeout

view advisory published 2026-10-19Licence: CC-BY-4.0

### Summary The keepalive timeout was not used during the initial portion of a request. ### Impact An attacker could keep an idle connection open indefinitely before sending any data. ### Workaround Use a reverse proxy (as recommended for all production deployments) with sensible keepalive limits.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-111064US	—	0.40% (34th)	—	2026-10-19
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, keepalive timeout handling is absent during the initial portion of a request. An at…

references

External citations — patches, advisories, analysis.

https://github.com/aio-libs/aiohttpPACKAGE
https://github.com/aio-libs/aiohttp/commit/be846822b4b3a5a54b6163e794b42dc06fba54a3WEB
https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4WEB
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-5wr8-gcqf-gqf3WEB

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