{"action":"Upgrade com.fasterxml.jackson.core:jackson-databind to 2.18.8 (2.18.x), 2.21.4 (2.21.x) or 3.1.4 (3.1.x) or later.","affected":[{"fixed":"2.18.8","introduced":"2.10.0"},{"fixed":"3.1.4","introduced":"3.0.0"},{"fixed":"2.21.4","introduced":"2.19.0"}],"component":"com.fasterxml.jackson.core:jackson-databind","cve_ids":["CVE-2026-54512"],"ecosystem":"Maven","epss":0.01066,"exploited":false,"fixed_versions":["2.18.8","3.1.4","2.21.4"],"ghsa_id":"GHSA-j3rv-43j4-c7qm","id":"tcs_01M5N91XN5EJRARHA68TJ0HG0N","modified_at":"2026-10-28T10:56:49.472327085Z","published_at":"2026-06-23T21:21:38Z","references":["https://osv.dev/vulnerability/GHSA-j3rv-43j4-c7qm","https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c7qm","https://nvd.nist.gov/vuln/detail/CVE-2026-54512","https://github.com/FasterXML/jackson-databind/issues/5988","https://github.com/FasterXML/jackson-databind/commit/434d6c511de7fdd9872f29157aafb6162d12d8d5","https://github.com/FasterXML/jackson-databind"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-j3rv-43j4-c7qm","url":"https://osv.dev/vulnerability/GHSA-j3rv-43j4-c7qm"}],"summary":"jackson-databind has a PolymorphicTypeValidator bypass via generic type parameters that allows arbitrary class instantiation"}