CVE-2026-9735
Received Received - Intake
MongoDB Server Logs Authentication Credentials in SASL Authentication

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: MongoDB, Inc.

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.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-10
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mongodb mongodb_server *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-532 The product writes sensitive information to a log file.
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Compliance Impact

This vulnerability causes MongoDB server to log authentication parameters, including credentials, in server logs without redaction when connection health metric logging is enabled. This exposure of sensitive authentication data in logs can lead to unauthorized access or data breaches.

Such exposure of sensitive credentials in logs can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require protection of personal and sensitive data, including secure handling and storage of authentication information.

Executive Summary

This vulnerability occurs in the MongoDB server where, during SASL authentication, authentication parameters including credentials may be logged to the server log.

When connection health metric logging is enabled, the full authentication parameters are written to the log without any redaction, potentially exposing sensitive information.

Impact Analysis

The vulnerability can lead to sensitive authentication credentials being exposed in server logs.

If an attacker gains access to these logs, they could retrieve authentication details, potentially compromising the security of the MongoDB server and its data.

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