{"action":"Upgrade cbor2 to 5.7.1 or later.","affected":[{"fixed":"5.7.1","introduced":"0"}],"component":"cbor2","cve_ids":["CVE-2025-64076"],"ecosystem":"PyPI","epss":0.00489,"exploited":false,"fixed_versions":["5.7.1"],"ghsa_id":"GHSA-9q9c-vjxh-p795","id":"tcs_01M5KFBCW408R8S9BXQVHTFFMT","modified_at":"2026-09-01T16:55:40.143239842Z","published_at":"2025-11-18T18:32:55Z","references":["https://osv.dev/vulnerability/GHSA-9q9c-vjxh-p795","https://nvd.nist.gov/vuln/detail/CVE-2025-64076","https://github.com/agronholm/cbor2/issues/264","https://github.com/agronholm/cbor2/pull/265","https://github.com/agronholm/cbor2/commit/851473490281f82d82560b2368284ef33cf6e8f9","https://github.com/agronholm/cbor2","https://github.com/agronholm/cbor2/releases/tag/5.7.1","https://github.com/pypa/advisory-database/tree/main/vulns/cbor2/PYSEC-2025-238.yaml"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-9q9c-vjxh-p795","url":"https://osv.dev/vulnerability/GHSA-9q9c-vjxh-p795"}],"summary":"cbor2 C extension decoder flaws can cause denial of service"}