{"action":"Upgrade python-multipart to 0.0.30 or later.","affected":[{"fixed":"0.0.30","introduced":"0"}],"component":"python-multipart","cve_ids":["CVE-2026-53538"],"ecosystem":"PyPI","epss":0.00256,"exploited":false,"fixed_versions":["0.0.30"],"ghsa_id":"GHSA-6jv3-5f52-599m","id":"tcs_01M5KH31TYCDP5CWR51NQHM3FX","modified_at":"2026-07-13T16:33:29.021693741Z","published_at":"2026-07-13T15:46:17.263527Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3037","https://github.com/Kludex/python-multipart/security/advisories/GHSA-6jv3-5f52-599m","https://github.com/Kludex/python-multipart","https://pypi.org/project/python-multipart","https://github.com/advisories/GHSA-6jv3-5f52-599m","https://nvd.nist.gov/vuln/detail/CVE-2026-53538"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"PYSEC-2026-3037","url":"https://osv.dev/vulnerability/PYSEC-2026-3037"}],"summary":"python-multipart: Semicolon treated as querystring field separator enables parameter smuggling"}