CVE-2026-81530 — KMS master key exposure via unredacted credential serialization in driver settings string
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 rep…
Published: 2026-08-27 · CVSS: 6.8 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7