CVE-2026-111064CWE-770denial-of-service

CVE-2026-111064

published October 19, 2026

CVSS
8.2
EPSS
0%
Percentile
33.0
In the wild
Unconfirmed
What it is

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 attacker can keep an idle connection open indefinitely before sending any request data, consuming server connection capacity. This issue is fixed in version 3.14.4.

The record
Technical detail
CVSS
8.2 · NONE
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00399 · 33.0th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-10-19T21:17Z
References (3)
https://github.com/aio-libs/aiohttp/commit/be846822b4b3a5a54b6163e794b42dc06fba54a3 · [email protected]https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4 · [email protected]https://github.com/aio-libs/aiohttp/security/advisories/GHSA-5wr8-gcqf-gqf3 · [email protected]
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 16:47Z
    aiohttp server lacks an initial request/header timeout
    cvelistv5
  • 19 OCT 16:47Z
    aiohttp server lacks an initial request/header timeout
    cvelistv5