{"id":"BIT-mongodb-2026-8201","summary":"Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields","details":"A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query.\n\nThis issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.","aliases":["CVE-2026-8201"],"modified":"2026-09-10T16:01:43.409602878Z","published":"2026-05-14T08:50:16.931Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://jira.mongodb.org/browse/SERVER-122032"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8201"}],"affected":[{"package":{"name":"mongodb","ecosystem":"Bitnami","purl":"pkg:bitnami/mongodb"},"ranges":[{"type":"SEMVER","events":[{"introduced":"7.0.0"},{"fixed":"7.0.34"},{"introduced":"8.0.0"},{"fixed":"8.0.23"},{"introduced":"8.2.0"},{"fixed":"8.2.9"},{"introduced":"8.3.0"},{"fixed":"8.3.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mongodb/BIT-mongodb-2026-8201.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}