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CVE PROGRAM SOURCE RECORD6.8 Medium

CVE-2026-81530

KMS master key exposure via unredacted credential serialization in driver settings string

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MongoDB C# Driver

Default version status: unaffected

  • 2.10.0 to < 3.11.1affected

References