{"action":"Upgrade httpx2 to 2.11.0 or later.","affected":[{"fixed":"2.11.0","introduced":"0"}],"component":"httpx2","cve_ids":["CVE-2026-84379"],"ecosystem":"PyPI","epss":0.00317,"exploited":false,"fixed_versions":["2.11.0"],"ghsa_id":"GHSA-h4x7-gw46-3wm6","id":"tcs_01M5KH84YT2QPCSGQMBYF2ANJ2","modified_at":"2026-09-10T12:15:04.992530880Z","published_at":"2026-09-10T09:45:01.017807Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3848","https://github.com/pydantic/httpx2/security/advisories/GHSA-h4x7-gw46-3wm6","https://nvd.nist.gov/vuln/detail/CVE-2026-84379","https://github.com/pydantic/httpx2/pull/1142","https://github.com/pydantic/httpx2/commit/de96d810ee4e309d118982fe7084a46a2bcd600d","https://github.com/pydantic/httpx2","https://github.com/pydantic/httpx2/releases/tag/v2.11.0","https://pypi.org/project/httpx2","https://github.com/advisories/GHSA-h4x7-gw46-3wm6"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-3848","url":"https://osv.dev/vulnerability/PYSEC-2026-3848"}],"summary":"HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers"}