CVE-2026-9735

Keyfile contents are in MongoDB Server logs

State: Published
Severity: 6.8 Medium
Published: Jun 9, 2026
Updated: Jun 10, 2026
Reserved: May 27, 2026

Description

MongoDB server may log authentication parameters, including credentials, to the server log during SASL authentication. When connection health metric logging is enabled, the full authentication parameters are written to the log without redaction.

Scores

CVSS	Score	Vector	Source
4.0	6.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	mongodb
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	mongodb

Weaknesses

CWE-532 Insertion of sensitive information into log file

Affected Products

Product	Versions
MongoDB ServerMongoDB	8.3.0 to before 8.3.3Affected

References

https://jira.mongodb.org/browse/SERVER-126506

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.