{"action":"Upgrade aiohttp to 3.14.1 or later.","affected":[{"fixed":"3.14.1","introduced":"0"}],"component":"aiohttp","cve_ids":["CVE-2026-54274"],"ecosystem":"PyPI","epss":0.00539,"exploited":false,"fixed_versions":["3.14.1"],"ghsa_id":"GHSA-xcgm-r5h9-7989","id":"tcs_01M5KGXH9MZP6WSNJKVV4WHHHE","modified_at":"2026-07-13T07:15:15.772445691Z","published_at":"2026-06-22T18:16:45.877Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2108","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-xcgm-r5h9-7989","https://github.com/aio-libs/aiohttp/commit/14b6ee851fb16ec199acb950de0c82d476799e7d"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2108","url":"https://osv.dev/vulnerability/PYSEC-2026-2108"}],"summary":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual"}