What’s Vulnerable › Vulnerabilities

CVE-2021-20332: MongoDB Rust Driver may publish events containing authentication-related data to a connection pool event listener configured by an application

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-02 · updated 2026-06-17
• Weakness: CWE-200

Description

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

Affected products

• MongoDB Rust Driver: from 1.0.0 through 1.2.1; 2.0.0-alpha, 2.0.0-alpha1

References

• https://jira.mongodb.org/browse/RUST-591
• https://jira.mongodb.org/browse/RUST-591

Get alerted when CVE-2021-20332 or the next vulnerability affects your stack