{"action":"Upgrade httpx2 to 2.10.0 or later.","affected":[{"fixed":"2.10.0","introduced":"2.5.0"}],"component":"httpx2","cve_ids":["CVE-2026-84378"],"ecosystem":"PyPI","epss":0.00315,"exploited":false,"fixed_versions":["2.10.0"],"ghsa_id":"GHSA-f2fp-rgf2-35cp","id":"tcs_01M5KH84S24WY851JEJSZBWQN0","modified_at":"2026-09-10T12:15:05.087047573Z","published_at":"2026-09-10T09:45:00.972470Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3847","https://github.com/pydantic/httpx2/security/advisories/GHSA-f2fp-rgf2-35cp","https://nvd.nist.gov/vuln/detail/CVE-2026-84378","https://github.com/pydantic/httpx2/pull/1071","https://github.com/pydantic/httpx2/pull/1117","https://github.com/pydantic/httpx2/commit/cbfc0e04ef6507da29ccbb3b9c2e5b23dd693414","https://github.com/pydantic/httpx2","https://github.com/pydantic/httpx2/releases/tag/v2.10.0","https://pypi.org/project/httpx2","https://github.com/advisories/GHSA-f2fp-rgf2-35cp"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-3847","url":"https://osv.dev/vulnerability/PYSEC-2026-3847"}],"summary":"HTTPX2: Quadratic SSE line buffering can cause CPU denial of service"}