# CVE-2026-81490

## Summary

- **CVE ID:** CVE-2026-81490
- **Severity:** HIGH
- **CVSS Score:** 8.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H)
- **CWE:** CWE-476
- **Published:** Aug 28, 2026
- **Last Modified:** Aug 31, 2026

## Description

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 Products

- MongoDB — BI Connector (0)

## References

- [CNA](https://www.mongodb.com/docs/bi-connector/current/release-notes/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.24%
- **EPSS Percentile:** 14.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._