# CVE-2026-82064

## Summary

- **CVE ID:** CVE-2026-82064
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-617
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

A security issue in MongoDB Server allows an unauthenticated network user to cause a denial of service on a specific type of replica set member. The server contains an assertion in its read concern processing logic that can be reached without authentication, and the assertion's assumptions about internal state do not hold for all member configurations, causing the server process to terminate.

## Affected Products

- MongoDB — MongoDB Server (8.3.0)
- MongoDB — MongoDB Server (8.0.0)
- MongoDB — MongoDB Server (7.0.0)

## References

- [CNA](https://jira.mongodb.org/browse/SERVER-130759)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.4

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