Elevation of Privilege Vulnerability in Azure Cosmos DB by Microsoft
CVE-2026-87701

9.6CRITICAL

Key Information:

Vendor

Microsoft
Status
Azure Cosmos Db
Vendor
CVE Published:
17 September 2026

What is CVE-2026-87701?

An improper neutralization of special elements in output used by Azure Cosmos DB allows an authorized attacker to exploit this vulnerability to elevate their privileges across the network. This could lead to unauthorized access and manipulation of sensitive data within the database, compounding potential security risks for organizations relying on this service. Prompt patching and monitoring are essential to mitigate the impact of this issue.

Affected Version(s)

Azure Cosmos DB -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.