{"cve":"CVE-2026-111064","nvd":{"published":"2026-10-19T17:17:03.377","modified":"2026-10-19T20:55:02.217","status":"Undergoing Analysis","description":"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.","cvss_v4":{"vector":"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","score":8.2},"cvss_v3":null,"cwes":["CWE-770"],"references":["https://github.com/aio-libs/aiohttp/commit/be846822b4b3a5a54b6163e794b42dc06fba54a3","https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-5wr8-gcqf-gqf3"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-111064","score":0.00399,"percentile":0.33893,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5wr8-gcqf-gqf3","url":"https://osv.dev/vulnerability/GHSA-5wr8-gcqf-gqf3","summary":"aiohttp server lacks an initial request/header timeout","modified":"2026-10-19T17:15:04.139404381Z","packages":[{"ecosystem":"PyPI","name":"aiohttp","purl":"pkg:pypi/aiohttp","ranges":["<3.14.4"],"fixed":["3.14.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}