---
id: CVE-2026-87701
title: >-
  Improper neutralization of special elements in output used by a downstream
  component ('injection') in Azure Cosmos DB allows an authorized attacker to
  elevate privileges over a network.
summary: >-
  Improper neutralization of special elements in output used by a downstream
  component ('injection') in Azure Cosmos DB allows an authorized attacker to
  elevate privileges over a network.
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-74
vendor: Microsoft
product: Azure Cosmos DB
affected:
  - azure_cosmos_db -
published: '2026-09-17'
updated: '2026-09-19'
sourceUpdated: '2026-09-19T04:18:01.503'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87701'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87701'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-18T14:10:57.178464Z'
epss: 0.00437
epssPercentile: 0.37468
ingestedAt: '2026-09-17T23:31:20.688Z'
---

## Overview

Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.

## Remediation

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