CVE-2026-81530

A weakness in the client-side encryption configuration surface of the MongoDB C# Driver causes sensitive key-management credential material supplied by the application to be reproduced verbatim in the driver's human-readable diagnostic representation of its client settings, instead of being masked as other secret fields are. A party able to read the application's logs, diagnostic output, or a process memory dump may thereby recover the plaintext credentials and use them to decrypt protected field data.

CVSS v3 5.6 MEDIUM

5.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.1 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://jira.mongodb.org/browse/CSHARP-6164	Vendor Advisory
https://www.nuget.org/packages/MongoDB.Driver/3.11.1	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:mongodb:c\#_driver:*:*:*:*:*:mongodb:*:*

History

29 Sep 2026, 19:16

Type	Values Removed	Values Added
First Time		Mongodb c\# Driver Mongodb
References	~~() https://jira.mongodb.org/browse/CSHARP-6164 -~~	() https://jira.mongodb.org/browse/CSHARP-6164 - Vendor Advisory
References	~~() https://www.nuget.org/packages/MongoDB.Driver/3.11.1 -~~	() https://www.nuget.org/packages/MongoDB.Driver/3.11.1 - Product
CPE		cpe:2.3:a:mongodb:c\#_driver::::::mongodb::*

Information

Published : 2026-08-27 20:18

Updated : 2026-09-29 19:16

NVD link : CVE-2026-81530

Mitre link : CVE-2026-81530

CVE.ORG link : CVE-2026-81530

JSON object : View

Products Affected

mongodb

c\#_driver

CWE

CWE-532

Insertion of Sensitive Information into Log File

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