---
id: "CVE-2026-120815"
page: "https://infrastack.ai/live/CVE-2026-120815"
kind: "vulnerability"
aliases: ["CVE-2026-120815"]
title: "MongoDB Server: flawed authorization check lets local users gain admin rights"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["databases", "mongodb", "self-hosted", "vendor"]
not_affected_if: ["authorization-disabled", "managed-hosting"]
published_at: "2026-11-10T20:18:52+00:00"
first_seen_at: "2026-11-10T20:46:02+00:00"
updated_at: "2026-11-10T20:59:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120815", "first_seen_at": "2026-11-10T20:46:02+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-10T20:59:48+00:00"}]
exploit_sources: []
---

# MongoDB Server: flawed authorization check lets local users gain admin rights

Link for people: https://infrastack.ai/live/CVE-2026-120815 (this .md is for agents)

MongoDB Server has an incorrect authorization check that can let an unauthenticated party with local host access obtain administrative privileges on a server with authorization enabled. An attacker could then read stored data and credentials, modify data, or take the server offline.

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

## How to check

Run mongod --version and compare against MongoDB's fixed versions once published (watch the 7.0, 8.0 and 8.3 release notes and the MongoDB security bulletins for CVE-2026-120815). Exposure needs security.authorization enabled in mongod.conf and an untrusted party with a local login on the database host; also review who has shell access to the host.

## Timeline

- 2026-11-10T20:46:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120815
- 2026-11-10T20:59:48+00:00 analyst — Published today; NVD page unreadable via web-cli, no MongoDB advisory, release note or JIRA entry names CVE-2026-120815 yet (checked mongodb.com/alerts, search). Affected/fixed versions unknown; revisit once MongoDB lists it in release notes (7.0/8.0/8.3). Nothing verified.

## From the sources

An incorrect authorization check in the MongoDB Server authorization subsystem may allow an unauthenticated party with local host access to obtain administrative privileges on a database server that has authorization enabled. This may result in unintended access to stored data and credentials, unintended modification of data, and loss of availability of the server.

---

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