{"action":"Upgrade aiohttp to 3.14.2 or later.","affected":[{"fixed":"3.14.2","introduced":"0"}],"component":"aiohttp","cve_ids":["CVE-2026-69243"],"ecosystem":"PyPI","epss":0.00443,"exploited":false,"fixed_versions":["3.14.2"],"ghsa_id":"GHSA-mfx4-hv73-q22v","id":"tcs_01M5KH5YVSKF7R2M1ZDZP1RKHG","modified_at":"2026-08-04T14:30:13.791061724Z","published_at":"2026-08-04T11:34:47.269769Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3546","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v","https://github.com/aio-libs/aiohttp/pull/13017","https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98","https://github.com/aio-libs/aiohttp","https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2","https://pypi.org/project/aiohttp","https://github.com/advisories/GHSA-mfx4-hv73-q22v","https://nvd.nist.gov/vuln/detail/CVE-2026-69243"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2026-3546","url":"https://osv.dev/vulnerability/PYSEC-2026-3546"}],"summary":"AIOHTTP: HTTP request smuggling via WebSocket upgrade"}