Plaintext storage of encrypted fields via skipped embedded models in encryption schema generation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-312.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MongoDB | Mongoid | 9.1.0; 9.0.0 – 9.0.11 | — | No fix listed | CNA |
- Mongoid VendorMongoDB Affected 9.1.0; 9.0.0 – 9.0.11 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93764
- 2026-10-03 Alias added: GHSA-p3g7-qcr8-3pgm
References
More MongoDB Mongoid vulnerabilities
- TI-2026-63124 Data deletion and attribute disclosure via field-name method injection in in-memory queries CVSS 4.0CRITICAL 9.2
- TI-2026-63123 Denial of service via unbounded regex matching in Mongoid's in-memory query matcher CVSS 4.0HIGH 8.7
- TI-2026-63121 Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist CVSS 4.0HIGH 8.8
- TI-2026-63127 Document deletion and process crash via unvalidated method-name dispatch in atomic pop operation CVSS 4.0HIGH 8.3
- TI-2026-63122 NoSQL injection of JavaScript-executing query operators via unsafe-by-default operator guard CVSS 4.0HIGH 8.3
- TI-2026-63120 Cross-principal document update, theft, and deletion via unvalidated id in nested attributes CVSS 4.0HIGH 8.6
Sources
- CVE-2026-93764 · CVE Program
- CVE-2026-93764 · NVD
- FIRST EPSS
- GHSA-p3g7-qcr8-3pgm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93764 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences