Vulnerability record · CVE-2021-20332 · published 2 August 2021

CVE-2021-20332: Mongodb rust driver information exposure vulnerability

Mongodb · Rust Driver

Specific MongoDB Rust Driver versions can include credentials used by the connection pool to authenticate connections in the monitoring event that is emitted when the pool is created. The user's logging infrastructure could then potentially ingest these events and unexpectedly leak the credentials. Note that such monitoring is not enabled by default. This issue affects MongoDB Rust Driver version 2.0.0-alpha, MongoDB Rust Driver version 2.0.0-alpha1 and MongoDB Rust Driver version 1.0.0 through to and including 1.2.1

4.4 CVSS 3.1 Medium EPSS 0.31% · top 78.8% CWE-200 · Information exposure

4.4CVSS 3.1 base score, v2 2.1

0.31%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Rust Driver Mongodb

References

Link	Tags
https://jira.mongodb.org/browse/RUST-591	PatchVendor Advisory
https://jira.mongodb.org/browse/RUST-591	PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-20332), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.