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CVE-2021-20332

18
FAUCET Score

CVE-2021-20332 describes a credential leakage vulnerability in specific versions of the MongoDB Rust Driver (versions 1.0.0 through 1.2.1, and 2.0.0-alpha/alpha1). When connection pool monitoring is enabled (not by default), credentials used for authentication can be inadvertently included in emitted monitoring events, potentially exposing them via logging infrastructure. This vulnerability has a CVSS score of 4.4 (Medium), indicating a local attack vector with low complexity, requiring high privileges for exploitation, and leading to high confidentiality impact. There is no impact on integrity or availability. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 1.2.1CPE matchmatch criteria
cpe:2.3:a:mongodb:rust_driver:*:*:*:*:*:mongodb:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:mongodb:rust_driver:2.0.0:alpha:*:*:*:mongodb:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:mongodb:rust_driver:2.0.0:alpha1:*:*:*:mongodb:*:*

CVSS Data

CVSS version used by this source: 3.1

4.2MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.6
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 70th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: mongodbFixed in: 2.0.0-beta

Vendor Advisories (1)

rustGHSA-4rjr-3gj2-5crqmedium

Exposure of Sensitive Information to an Unauthorized Actor in MongoDB Rust Driver

May 24, 2022

References

jira.mongodb.org / browse/RUST-591
PatchVendor Advisory