Information Disclosure in MongoDB Server-Side JavaScript Engine
CVE-2026-13066

7.1HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
22 July 2026

What is CVE-2026-13066?

The vulnerability arises from the improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine. This flaw can lead to sensitive information being unintentionally revealed through data returned to clients, potentially exposing internal process memory contents. This issue poses a significant risk for applications leveraging server-side JavaScript functionality within MongoDB.

Affected Version(s)

MongoDB Server 7.0 < 7.0.39

MongoDB Server 8.0 < 8.0.28

MongoDB Server 8.2.0 < 8.2.12

References

https://jira.mongodb.org/browse/SERVER-127694

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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