{"action":"Upgrade aiohttp to 3.13.4 or later.","affected":[{"fixed":"3.13.4","introduced":"0"}],"component":"aiohttp","cve_ids":["CVE-2026-34517"],"ecosystem":"PyPI","epss":0.00384,"exploited":false,"fixed_versions":["3.13.4"],"ghsa_id":"GHSA-3wq7-rqq7-wx6j","id":"tcs_01M5KEWND6HARSC8K0B4RGZ0XV","modified_at":"2026-09-10T03:50:42.683852324Z","published_at":"2026-04-01T21:47:07Z","references":["https://osv.dev/vulnerability/GHSA-3wq7-rqq7-wx6j","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-3wq7-rqq7-wx6j","https://nvd.nist.gov/vuln/detail/CVE-2026-34517","https://github.com/aio-libs/aiohttp/commit/cbb774f38330563422ca0c413a71021d7b944145","https://github.com/aio-libs/aiohttp","https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4"],"severity":{"label":"low"},"sources":[{"source":"osv","source_id":"GHSA-3wq7-rqq7-wx6j","url":"https://osv.dev/vulnerability/GHSA-3wq7-rqq7-wx6j"}],"summary":"AIOHTTP has late size enforcement for non-file multipart fields causes memory DoS"}