What is CVE-2026-120673?

CVE-2026-120673 is a medium-severity vulnerability in MongoDB Rust Driver, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-11-03.

How severe is CVE-2026-120673?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in MongoDB Rust Driver

CVE-2026-120673

A component of the MongoDB Rust Driver that records diagnostic tracing data can capture command content before automatic client-side field level encryption is applied. In deployments that turn on the optional tracing capability together with automatic in-use encryption, a party with read access to the application's exported trace data may obtain field values that the application designated for encryption, without access to the encryption keys. This may result in unintended disclosure of data.

Published 2026-11-03 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

MongoDB Rust Driver

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

jira.mongodb.org/browse/RUST-2525

Frequently asked questions

What is CVE-2026-120673?: CVE-2026-120673 is a medium-severity vulnerability in MongoDB Rust Driver, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-11-03.
How severe is CVE-2026-120673?: Medium severity. CVSS v3 base score is 5.5 out of 10.