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CVE-2026-33980: Azure Data Explorer MCP Server is a Model Context Protocol (MCP) server that enables AI assistants t…

Occurred
Mar 27, 2026
Published
Mar 27, 2026
Source
NVD CVE

Summary

Azure Data Explorer MCP Server is a Model Context Protocol (MCP) server that enables AI assistants to execute KQL queries and explore Azure Data Explorer (ADX/Kusto) databases through standardized interfaces. Versions up to and including 0.1.1 contain KQL (Kusto Query Language) injection vulnerabilities in three MCP tool handlers: `get_table_schema`, `sample_table_data`, and `get_table_details`. The `table_name` parameter is interpolated directly into KQL queries via f-strings without any validation or sanitization, allowing an attacker (or a prompt-injected AI agent) to execute arbitrary KQL queries against the Azure Data Explorer cluster. Commit 0abe0ee55279e111281076393e5e966335fffd30 patches the issue.

Tags

  • CVE
  • CVE-2026-33980
  • cvss:HIGH
  • agent-fail:injection-direct
  • agent-cause:prompt-design

Classification

Category confidence: 95%
Severity confidence: 90%

Rationale: MCP server vulnerability allows prompt injection leading to unauthorized database access via AI agent tools.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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