CVE-2026-66803: critical vulnerability in Microsoft Azure Cosmos DB
Azure Cosmos DB Remote Code Execution Vulnerability
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 0.9%
Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Azure Cosmos DBRelated CVEs — Microsoft Azure Cosmos DB
In the same product, most dangerous first.