---
id: CVE-2026-81532
title: >-
  A user able to submit SQL through an application using the MongoDB Connector
  for BI ODBC driver can supply a positioned-cursor statement whose cursor name
  exceeds the size of an internal fixed-length buffer
summary: >-
  A user able to submit SQL through an application using the MongoDB Connector
  for BI ODBC driver can supply a positioned-cursor statement whose cursor name
  exceeds the size of an internal fixed-length buffer. Because the name length
  is no…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-121
vendor: mongodb
product: bi_connector_odbc_driver
affected:
  - bi_connector_odbc_driver < 1.4.10
patched:
  - bi_connector_odbc_driver 1.4.10
published: '2026-08-28'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T18:54:31.000'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81532'
references:
  - url: 'https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases'
    label: cna@mongodb.com
tags:
  - nvd
epss: 0.0049
epssPercentile: 0.39482
ingestedAt: '2026-09-11T19:57:09.303Z'
---

## Overview

A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a positioned-cursor statement whose cursor name exceeds the size of an internal fixed-length buffer. Because the name length is not bounded before the driver builds its diagnostic message, memory adjacent to that buffer is overwritten with user-supplied content. This can terminate the hosting application process and may allow unintended code to run within it.

## Affected

- `bi_connector_odbc_driver < 1.4.10`

## Remediation

Upgrade past the affected range:

- `bi_connector_odbc_driver 1.4.10`