---
id: "CVE-2026-120823"
page: "https://infrastack.ai/live/CVE-2026-120823"
kind: "vulnerability"
aliases: ["CVE-2026-120823"]
title: "MongoDB Server: aggregation flaw lets any logged-in user read query configuration"
severity: "medium"
cvss: 4.3
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["database", "infrastructure", "mongodb", "self-hosted"]
not_affected_if: ["no-untrusted-accounts"]
published_at: "2026-11-10T21:19:01+00:00"
first_seen_at: "2026-11-10T21:46:15+00:00"
updated_at: "2026-11-10T21:49:57+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120823", "first_seen_at": "2026-11-10T21:46:15+00:00"}]
exploit_sources: []
---

# MongoDB Server: aggregation flaw lets any logged-in user read query configuration

Link for people: https://infrastack.ai/live/CVE-2026-120823 (this .md is for agents)

A missing authorization check in MongoDB Server's aggregation framework lets any user with valid credentials, including accounts with no roles, read deployment-wide query configuration data. An attacker gets configuration and schema information that should need a cluster-level privilege.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T21:46:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120823

## From the sources

A missing authorization check in the aggregation framework of MongoDB Server may allow a user holding any valid credentials, including an account with no assigned roles, to read deployment-wide query configuration data that is otherwise restricted to a cluster-level privilege. This may result in unintended access to configuration and schema information.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_