CVE-2026-21524: Microsoft Azure Data Explorer

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Exposure of sensitive information to an unauthorized actor in Azure Data Explorer allows an unauthorized attacker to disclose information over a network.

Affected products

• Microsoft Azure Data Explorer: affected versions not specified

Published 2026-01-22. Last modified 2026-06-17.