Vulnerability in MongoDB Inc. Mongoid

CVE-2026-93763

A protection mechanism failure in the object-document mapper's encryption configuration generation can cause fields that an application declared for client-side field-level encryption to be written and kept in cleartext, without any error or warning. A party holding ordinary read access to the database can then read values that were intended to be protected from that party. This may result in unintended disclosure of sensitive information.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-93763?
CVE-2026-93763 is a medium-severity vulnerability in MongoDB Inc. Mongoid, classified under Cleartext Storage of Sensitive Information. CVSS score: 6.5/10. Published 2026-09-18.
How severe is CVE-2026-93763?
Medium severity. CVSS v3 base score is 6.5 out of 10.