CVE-2026-69857: CWE-639: Authorization Bypass Through User-Controlled Key in Microsoft Azure Cosmos DB
Description
CVE-2026-69857 is a high-severity vulnerability in Microsoft Azure Cosmos DB involving authorization bypass through a user-controlled key. This flaw allows an authorized attacker with limited privileges to perform network spoofing, potentially leading to complete compromise of confidentiality, integrity, and availability of the service. The vulnerability has an official fix available, and since Azure Cosmos DB is a cloud service, Microsoft manages the remediation on their side.
CVSS v3.1
Score 8.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-69857 and classified under CWE-639 (Authorization Bypass Through User-Controlled Key), affects Microsoft Azure Cosmos DB. It enables an authorized attacker with low privileges to bypass authorization controls by manipulating a user-controlled key, leading to spoofing attacks over the network. The CVSS v3.1 base score is 8.5, indicating high severity with impacts on confidentiality, integrity, and availability. The vendor has issued an official fix and manages patching for this cloud-hosted service.
Potential Impact
An attacker with limited privileges can exploit this vulnerability to bypass authorization mechanisms, enabling spoofing attacks that compromise the confidentiality, integrity, and availability of Azure Cosmos DB data and services. This could lead to unauthorized data access, modification, or disruption of service.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability and manages remediation for Azure Cosmos DB as a cloud service. Users should verify with Microsoft’s advisory that their instances are patched and no further action is required on their part.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-7h72-qvqq-9276
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-69857"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
Threat ID: 6a9ad4fbacd9273b49b67ad5
Added to database: 09/04/2026, 14:26:03 UTC
Last enriched: 10/08/2026, 22:46:13 UTC
Last updated: 10/18/2026, 18:48:23 UTC
Views: 62
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.