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Microsoft Security Response CenterCVE-2026-66803

Azure Cosmos DB Remote Code Execution Vulnerability

Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.

Read the vendor bulletin Get alerts for Azure Cosmos DB
10.0CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Azure Cosmos DB
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-66803View CVSS, KEV, EPSS, and threat context
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