{"id":"CVE-2026-111749","published":"2026-10-19T17:17:04.023","lastModified":"2026-10-19T20:55:02.217","description":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-565"],"vendors":[],"products":[],"references":[{"url":"https://github.com/aio-libs/aiohttp/commit/6a07c171ef9f3be583e2907dcd1931372efca8d6","tags":[]},{"url":"https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","tags":[]},{"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gx76-c99x-2c96","tags":[]}],"exploitRefs":[{"url":"https://github.com/aio-libs/aiohttp/commit/6a07c171ef9f3be583e2907dcd1931372efca8d6","tags":[]},{"url":"https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","tags":[]},{"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gx76-c99x-2c96","tags":[]}],"hasPoc":true,"ai":null}