CVE-2026-126818
Mongoid 9.1.1 incomplete CVE-2026-93764 fix stores descendant-only encrypted fields in plaintext
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-311 |
| Vendor | mongodb |
| Product | ruby driver |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
MongoDB / Ruby Driver
9.0.0 9.0.1 9.0.2 9.0.3 9.0.4 9.0.5 9.0.6 9.0.7 9.0.8 9.0.9 9.0.10 9.0.11 9.0.12 9.1.0 9.1.1