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MEDIUM · 6.5

CVE-2026-13066

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...

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MongodbMongodb>= 7.0.0, < 7.0.39

Related Weaknesses (CWE)

CWE-843

References

FAQ

What is CVE-2026-13066?

CVE-2026-13066 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...

How severe is CVE-2026-13066?

CVE-2026-13066 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13066?

Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Mongodb.