CVE-2021-20328 – MongoDB Java driver client-side field level encryption not verifying KMS host name

https://notcve.org/view.php?id=CVE-2021-20328

25 Feb 2021 — Specific versions of the Java driver that support client-side field level encryption (CSFLE) fail to perform correct host name verification on the KMS server’s certificate. This vulnerability in combination with a privileged network position active MITM attack could result in interception of traffic between the Java driver and the KMS service rendering Field Level Encryption ineffective. This issue was discovered during internal testing and affects all versions of the Java driver that support CSFLE. The Jav... • https://jira.mongodb.org/browse/JAVA-4017 • CWE-295: Improper Certificate Validation •