Bug 2537970 (CVE-2026-93764)

Summary: CVE-2026-93764 mongoid: Mongoid: Information disclosure via skipped embedded model encryption
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Mongoid. When generating the client-side field-level encryption schema, Mongoid may fail to apply encryption rules to fields within embedded models. This oversight can lead to sensitive data, intended for encryption, being stored in plaintext without any indication or error. Consequently, an attacker with routine read access to the database or its backups could access and view this unencrypted information, leading to unauthorized information disclosure.
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Bug Depends On: 2543129    
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Description OSIDB Bzimport 2026-09-22 16:22:55 UTC 
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.