CVE-2026-81490

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://www.mongodb.com/docs/bi-connector/current/release-notes/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mongodb:bi_connector:*:*:*:*:*:*:*:*

History

29 Sep 2026, 19:15

Type	Values Removed	Values Added
First Time		Mongodb bi Connector Mongodb
CPE		cpe:2.3:a:mongodb:bi_connector::::::::
References	~~() https://www.mongodb.com/docs/bi-connector/current/release-notes/ -~~	() https://www.mongodb.com/docs/bi-connector/current/release-notes/ - Vendor Advisory

Information

Published : 2026-08-28 22:16

Updated : 2026-09-29 19:15

NVD link : CVE-2026-81490

Mitre link : CVE-2026-81490

CVE.ORG link : CVE-2026-81490

JSON object : View

Products Affected

mongodb

bi_connector

CWE

CWE-476

NULL Pointer Dereference

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