---
id: CVE-2026-81490
title: >-
  A database user able to create a view in a namespace that MongoDB Connector
  for BI samples can cause the schema-sampling routine to stop functioning by
  defining a view whose evaluation reliably fails
summary: >-
  A database user able to create a view in a namespace that MongoDB Connector
  for BI samples can cause the schema-sampling routine to stop functioning by
  defining a view whose evaluation reliably fails. The sampling logic classifies
  the re…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: mongodb
product: bi_connector
affected:
  - bi_connector < 2.14.31
patched:
  - bi_connector 2.14.31
published: '2026-08-28'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T19:15:04.110'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81490'
references:
  - url: 'https://www.mongodb.com/docs/bi-connector/current/release-notes/'
    label: cna@mongodb.com
tags:
  - nvd
epss: 0.00411
epssPercentile: 0.32805
ingestedAt: '2026-09-29T19:44:04.121Z'
---

## Overview

A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling.

## Affected

- `bi_connector < 2.14.31`

## Remediation

Upgrade past the affected range:

- `bi_connector 2.14.31`