---
id: CVE-2026-69857
title: >-
  Authorization bypass through user-controlled key in Azure Cosmos DB allows an
  authorized attacker to perform spoofing over a network.
summary: >-
  Authorization bypass through user-controlled key in Azure Cosmos DB allows an
  authorized attacker to perform spoofing over a network.
severity: high
cvss: 8.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-639
vendor: microsoft
product: azure_cosmos_db
affected:
  - azure_cosmos_db
published: '2026-09-03'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T18:50:00.367'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-69857'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69857'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00632
epssPercentile: 0.48023
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-04T13:31:56.562490Z'
ingestedAt: '2026-09-08T16:34:19.213Z'
---

## Overview

Authorization bypass through user-controlled key in Azure Cosmos DB allows an authorized attacker to perform spoofing over a network.

## Affected

- `azure_cosmos_db`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.