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Microsoft Security Response CenterCVE-2026-49159

Microsoft Graph Information Disclosure Vulnerability

CriticalVendor CVSS 6.5 / 10 1 CVE Published Jul 23, 2026 at 7:00 AM UTC

Summary

Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an authorized attacker to disclose information over a network.

Products covered

  • Microsoft Graph

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.