CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-126818 Mongoid 9.1.1 incomplete CVE-2026-93764 fix stores descendant-only encrypted fields in plaintext
High (7.1) in mongodb ruby driver.
On this page
A Ruby object-document mapper does not apply its automatic field-level encryption configuration to certain fields when the data model uses class inheritance. Values the application designated for encryption are written to the database in readable form without any error or warning. A database account holding only read access to the application's collections, and no access to the encryption key store, may obtain those values.
Severity
CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- CWE
- CWE-311 Missing Encryption of Sensitive Data
- OWASP Top 10
- A06:2025 Insecure Design
- Published
- Assigned by
- mongodb (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- mongodb:ruby driver
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| MongoDB Ruby Driver | 9.0.0 |
| MongoDB Ruby Driver | 9.0.1 |
| MongoDB Ruby Driver | 9.0.2 |
| MongoDB Ruby Driver | 9.0.3 |
| MongoDB Ruby Driver | 9.0.4 |
| MongoDB Ruby Driver | 9.0.5 |
| MongoDB Ruby Driver | 9.0.6 |
| MongoDB Ruby Driver | 9.0.7 |
| MongoDB Ruby Driver | 9.0.8 |
| MongoDB Ruby Driver | 9.0.9 |
| MongoDB Ruby Driver | 9.0.10 |
| MongoDB Ruby Driver | 9.0.11 |
| MongoDB Ruby Driver | 9.0.12 |
| MongoDB Ruby Driver | 9.1.0 |
| MongoDB Ruby Driver | 9.1.1 |
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-311 (14).