{"action":"Upgrade python-multipart to 0.0.30 or later.","affected":[{"fixed":"0.0.30","introduced":"0"}],"component":"python-multipart","cve_ids":["CVE-2026-53539"],"ecosystem":"PyPI","epss":0.0046,"exploited":false,"fixed_versions":["0.0.30"],"ghsa_id":"GHSA-5rvq-cxj2-64vf","id":"tcs_01M5KH31NX50V1RDRDWV08YVX5","modified_at":"2026-07-13T16:33:29.036422056Z","published_at":"2026-07-13T15:46:17.364140Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3036","https://github.com/Kludex/python-multipart/security/advisories/GHSA-5rvq-cxj2-64vf","https://github.com/Kludex/python-multipart","https://pypi.org/project/python-multipart","https://github.com/advisories/GHSA-5rvq-cxj2-64vf","https://nvd.nist.gov/vuln/detail/CVE-2026-53539"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3036","url":"https://osv.dev/vulnerability/PYSEC-2026-3036"}],"summary":"python-multipart: Quadratic-time querystring parsing with semicolon separators causes CPU denial of service"}