Vulnerability details

CVE-2026-33980

pab1it0 adx-mcp-server

Azure Data Explorer MCP Server: KQL Injection in multiple tools allows MCP client to execute arbitrary Kusto queries

CVSS 3.1

8.3High

Official description

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.

CVSS scores

Score	Version	Source	Vector
8.3High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L`

Affected products

Vendor	Product	Versions	Source
pab1it0	adx-mcp-server	<= 1.1.0	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/pab1it0/adx-mcp-server/commit/0abe0ee55279e111281076393e5e966335fffd30 x_refsource_MISC
https://github.com/pab1it0/adx-mcp-server/security/advisories/GHSA-vphc-468g-8rfp x_refsource_CONFIRM

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-03-28
Last updated: 2026-03-28
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.4%

Probability of exploitation in 30 days

34.8%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-943
Improper Neutralization of Special Elements in Data Query Logic