{"action":"Upgrade urllib3 to 2.6.0 or later.","affected":[{"fixed":"2.6.0","introduced":"1.0"}],"component":"urllib3","cve_ids":["CVE-2025-66471"],"ecosystem":"PyPI","epss":0.00682,"exploited":false,"fixed_versions":["2.6.0"],"ghsa_id":"GHSA-2xpw-w6gg-jr37","id":"tcs_01M5KETH3WPT9MEPJF81ZY7R5X","modified_at":"2026-09-25T17:15:05.968189421Z","published_at":"2025-12-05T18:15:54Z","references":["https://osv.dev/vulnerability/GHSA-2xpw-w6gg-jr37","https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37","https://nvd.nist.gov/vuln/detail/CVE-2025-66471","https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7","https://github.com/urllib3/urllib3/commit/d0fde3672e4a4093f7587858dccfc298eb66e46c","https://github.com/advisories/GHSA-2xpw-w6gg-jr37","https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2026-1994.yaml","https://github.com/urllib3/urllib3","https://pypi.org/project/urllib3"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-2xpw-w6gg-jr37","url":"https://osv.dev/vulnerability/GHSA-2xpw-w6gg-jr37"},{"source":"nvd","source_id":"CVE-2025-66471","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66471"}],"summary":"urllib3 streaming API improperly handles highly compressed data"}