{"id":"CVE-2026-93764","summary":"Plaintext storage of encrypted fields via skipped embedded models in encryption schema generation","details":"Mongoid may omit encryption rules for fields declared on embedded models when generating the client-side field-level encryption schema. Applications that enable this feature can therefore store values intended to be encrypted in readable form, with no error or warning. A party with routine read access to the database, a backup, or the underlying data files may then see data that was meant to remain unreadable outside the application.","modified":"2026-09-26T03:48:39.913049299Z","published":"2026-09-18T17:06:27.349Z","database_specific":{"cwe_ids":["CWE-312"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93764.json","unresolved_ranges":[{"extracted_events":[{"introduced":"9.1.0"},{"last_affected":"9.1.0"},{"introduced":"9.0.0"},{"last_affected":"9.0.11"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"mongodb"},"references":[{"type":"WEB","url":"https://jira.mongodb.org/browse/MONGOID-5989"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93764.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93764"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mongodb/mongoid","events":[{"introduced":"88f4b1ae86fab094b553a443dc5067493210c384"},{"fixed":"5373073d24abd206a64ab306a0af0b95a084c4f8"},{"introduced":"fc21c4106477474a655e5a4a03d829feb6997b00"},{"last_affected":"fc21c4106477474a655e5a4a03d829feb6997b00"}],"database_specific":{"cpe":["cpe:2.3:a:mongodb:mongoid:*:*:*:*:*:*:*:*","cpe:2.3:a:mongodb:mongoid:9.1.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0.0"},{"fixed":"9.0.12"},{"introduced":"9.1.0"},{"last_affected":"9.1.0"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["9.1.0","v9.0.11","v9.1.0","v9.0.10","v9.0.9","v9.0.8","v9.0.7","v9.0.6","v9.0.5","v9.0.4","v9.0.3","v9.0.2","v9.0.1","v9.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93764.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}