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

23 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) El controlador ODBC de MongoDB BI Connector convierte los valores de columna de punto flotante a texto sin verificar que el resultado quepa dentro del búfer de destino. Cuyo una aplicación lee un valor de punto flotante suficientemente grye como texto, el controlador puede escribir más allá del final de ese búfer y corromper la memoria adyacente. Un usuario que puede almacenar datos en una colección leída a través del BI Connector podría usar esto para bloquear la aplicación que realiza la lectura.

Information

Published : 2026-08-12 21:17

Updated : 2026-10-23 19:10

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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