CVE-2026-49159
Received Received - Intake

Microsoft Graph Information Disclosure Vulnerability

Publication date: 2026-07-24

Last updated on: 2026-07-24

Assigner: Microsoft Corporation

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

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Meta Information

Published
2026-07-24
Last Modified
2026-07-24
Generated
2026-07-24
AI Q&A
2026-07-24
EPSS Evaluated
N/A
NVD
CVE-2026-49159
EUVD
EUVD-2026-48456

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft graph *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

This vulnerability involves Microsoft Graph exposing sensitive information to unauthorized actors. An authorized attacker can exploit it to disclose information over a network without needing additional privileges beyond initial access.

Impact Analysis

If you use Microsoft Graph, an attacker could access sensitive data such as user information, files, or other confidential details. This may lead to data breaches, loss of privacy, or further exploitation depending on the exposed data.

Compliance Impact

This vulnerability could result in non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data exposure. Organizations may face fines, legal penalties, or reputational damage if sensitive data is compromised.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Graph as soon as they become available to patch the information disclosure vulnerability.

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