{"action":"Upgrade aiohttp to 3.14.1 or later.","affected":[{"fixed":"3.14.1","introduced":"0"}],"component":"aiohttp","cve_ids":["CVE-2026-54278"],"ecosystem":"PyPI","epss":0.00493,"exploited":false,"fixed_versions":["3.14.1"],"ghsa_id":"GHSA-g3cq-j2xw-wf74","id":"tcs_01M5KGXHTF857S4QJ6H89ACPBY","modified_at":"2026-07-13T07:15:14.301970035Z","published_at":"2026-06-22T18:16:46.393Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2111","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g3cq-j2xw-wf74","https://github.com/aio-libs/aiohttp/commit/4f7480e474cccc6a8cc2c92ad3f17a31dedf8232"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2111","url":"https://osv.dev/vulnerability/PYSEC-2026-2111"}],"summary":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk"}