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[ARTICLE · art-86715] src=getreadyforagents.com ↗ pub= topic=ai-safety verified=true sentiment=↓ negative

Critical Azure Cosmos DB vulnerability allowed cross-tenant database access via Gremlin sandbox escape

Cloud security firm Wiz disclosed CosmosEscape, a critical vulnerability in Microsoft Azure Cosmos DB that chained multiple flaws to obtain the platform-wide Cosmos Master Key, enabling attackers to escape the Gremlin query sandbox, execute code on shared infrastructure, and access any customer database including datastores for Microsoft services such as Entra ID, Teams, and Copilot.

read1 min views1 publishedAug 4, 2026
Critical Azure Cosmos DB vulnerability allowed cross-tenant database access via Gremlin sandbox escape
Image: Getreadyforagents (auto-discovered)

Cloud security firm Wiz disclosed CosmosEscape, a critical vulnerability in Microsoft Azure Cosmos DB that chained multiple flaws to obtain the platform-wide Cosmos Master Key, enabling attackers to escape the Gremlin query sandbox, execute code on shared infrastructure, and access any customer database including datastores for Microsoft services such as Entra ID, Teams, and Copilot.

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