{"id":"CVE-2019-2391","aliases":["GHSA-4jwp-vfvf-657p"],"url":"https://o3.security/vulnerability/CVE-2019-2391","summary":"Deserialization of Untrusted Data in bson","details":"Incorrect parsing of certain JSON input may result in js-bson not correctly serializing BSON. This may cause unexpected application behaviour including data disclosure. This issue affects: MongoDB Inc. js-bson library version 1.1.3 and prior to.","published":"2020-03-31T14:15:14.173Z","modified":"2026-07-08T16:28:07.966654Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"bson","fixedVersion":"1.1.4"}],"fix":null,"references":[{"type":"FIX","url":"https://github.com/mongodb/js-bson/releases/tag/v1.1.4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T16:28:07.966654Z"}}