CVE-2026-13066
Received Received - Intake

Improper Memory Exposure in MongoDB via BSON Serialization

Publication date: 2026-07-22

Last updated on: 2026-07-22

Assigner: MongoDB, Inc.

Description
Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side JavaScript.

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Meta Information

Published
2026-07-22
Last Modified
2026-07-22
Generated
2026-07-23
AI Q&A
2026-07-22
EPSS Evaluated
N/A
NVD
CVE-2026-13066
EUVD
EUVD-2026-47795

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mongodb mongodb *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-843 The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

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Executive Summary

This vulnerability involves improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine. This flaw can cause internal process memory contents to be included in data returned to the client, leading to unintended information disclosure in deployments using server-side JavaScript.

Impact Analysis

An attacker with access to the MongoDB server could exploit this to read sensitive memory contents, potentially exposing confidential data such as credentials, keys, or other internal information processed by the server.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations, legal penalties, and reputational damage due to unintended disclosure of protected health or personal data.

Mitigation Strategies

Update MongoDB to the latest patched version to address the improper handling of DBPointer objects during BSON serialization.

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