CVE-2026-18888

The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt adjacent memory. A user who can store data in a collection read through the BI Connector could use this to crash the application performing the read.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases/tag/v1.4.9	Vendor Advisory Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-12 21:17

Updated : 2026-09-11 18:52

NVD link : CVE-2026-18888

Mitre link : CVE-2026-18888

CVE.ORG link : CVE-2026-18888

JSON object : View

Products Affected

mongodb

bi_connector_odbc_driver

CWE

CWE-787

Out-of-bounds Write

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