CVE-2026-93763: CWE-312: Cleartext Storage of Sensitive Information in MongoDB Inc. Mongoid
CVE-2026-93763 is a vulnerability in MongoDB Inc.'s Mongoid object-document mapper where a failure in the encryption configuration generation causes fields intended for client-side field-level encryption to be stored in cleartext. This occurs without any error or warning, allowing users with ordinary read access to the database to view sensitive data that should have been protected.
AI Analysis
Technical Summary
This vulnerability arises from a protection mechanism failure in Mongoid's encryption configuration generation. Specifically, fields declared for client-side field-level encryption may be written and stored in cleartext rather than encrypted. This flaw does not produce errors or warnings, leading to unintended disclosure of sensitive information to parties with read access to the database. The issue affects Mongoid versions >=9.0.0 <=9.0.11 and exactly 9.1.0.
Potential Impact
The impact is the unintended disclosure of sensitive information that was expected to be protected by client-side field-level encryption. Any party with ordinary read access to the affected MongoDB database can read these fields in cleartext, potentially exposing confidential data. There is no indication of privilege escalation or remote code execution, but confidentiality is compromised.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. There are no provided patch links or official fixes at this time. Until a fix is available, users should review their encryption configuration and access controls carefully to minimize exposure.
CVE-2026-93763: CWE-312: Cleartext Storage of Sensitive Information in MongoDB Inc. Mongoid
Description
CVE-2026-93763 is a vulnerability in MongoDB Inc.'s Mongoid object-document mapper where a failure in the encryption configuration generation causes fields intended for client-side field-level encryption to be stored in cleartext. This occurs without any error or warning, allowing users with ordinary read access to the database to view sensitive data that should have been protected.
CVSS v4.0
Score 7.1high
Affected software
MongoDB Inc.
Mongoid
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a protection mechanism failure in Mongoid's encryption configuration generation. Specifically, fields declared for client-side field-level encryption may be written and stored in cleartext rather than encrypted. This flaw does not produce errors or warnings, leading to unintended disclosure of sensitive information to parties with read access to the database. The issue affects Mongoid versions >=9.0.0 <=9.0.11 and exactly 9.1.0.
Potential Impact
The impact is the unintended disclosure of sensitive information that was expected to be protected by client-side field-level encryption. Any party with ordinary read access to the affected MongoDB database can read these fields in cleartext, potentially exposing confidential data. There is no indication of privilege escalation or remote code execution, but confidentiality is compromised.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. There are no provided patch links or official fixes at this time. Until a fix is available, users should review their encryption configuration and access controls carefully to minimize exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-09-18T16:51:41.846Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aad759f55bf5e2cf54f35da
Added to database: 09/18/2026, 17:32:15 UTC
Last enriched: 09/18/2026, 17:46:31 UTC
Last updated: 09/18/2026, 18:36:24 UTC
Views: 7
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