How severe is CVE-2026-33980?

CVE-2026-33980 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-33980 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33980?

CVE-2026-33980 affects Pab1it0 Azure Data Explorer Mcp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33980?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33980 have an EU (EUVD) identifier?

Yes. CVE-2026-33980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16878.

When was CVE-2026-33980 published?

CVE-2026-33980 was published on 2026-03-27 and last updated on 2026-06-17.

CVE-2026-33980

CVE-2026-33980 is a high-severity vulnerability in Pab1it0 Azure Data Explorer Mcp Server with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-943.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16878
Weakness: CWE-943
Affected product: Pab1it0 Azure Data Explorer Mcp Server
Published: 2026-03-27
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-33980?: 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.
How severe is CVE-2026-33980?: CVE-2026-33980 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-33980 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33980?: CVE-2026-33980 affects Pab1it0 Azure Data Explorer Mcp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33980?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33980 have an EU (EUVD) identifier?: Yes. CVE-2026-33980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16878.
When was CVE-2026-33980 published?: CVE-2026-33980 was published on 2026-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pab1it0:azure_data_explorer_mcp_server:*:*:*:*:*:*:*:*

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