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Microsoft Security Response CenterCVE-2026-26147

Azure Stack HCI Information Disclosure Vulnerability

CriticalVendor CVSS 7.7 / 10 1 CVE Published May 21, 2026 at 7:00 AM UTC

Summary

Improper input validation in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

Products covered

  • Azure Stack HCI

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.