{"id":"CVE-2021-46877","aliases":["GHSA-3x8x-79m2-3w2w"],"url":"https://o3.security/vulnerability/CVE-2021-46877","summary":"jackson-databind possible Denial of Service if using JDK serialization to serialize JsonNode","details":"jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.","published":"2023-03-18T22:15:11.357Z","modified":"2026-08-07T17:28:13.913847Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.01124,"percentile":0.63037,"asOf":"2026-07-31"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"com.fasterxml.jackson.core:jackson-databind","fixedVersion":"2.12.6"},{"ecosystem":"Maven","name":"com.fasterxml.jackson.core:jackson-databind","fixedVersion":"2.13.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw"},{"type":"REPORT","url":"https://github.com/FasterXML/jackson-databind/issues/3328"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:28:13.913847Z"}}