---
id: CVE-2026-49159
title: Microsoft Graph Information Disclosure Vulnerability
summary: >-
  Exposure of sensitive information to an unauthorized actor in Microsoft Graph
  allows an authorized attacker to disclose information over a network.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-200
vendor: Microsoft
product: Microsoft Graph
affected:
  - graph -
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-24T22:08:16.019614Z'
published: '2026-07-24'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T22:34:30.969Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-49159'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49159'
    label: Microsoft Graph Information Disclosure Vulnerability
tags:
  - cve.org
epss: 0.00552
epssPercentile: 0.45028
ingestedAt: '2026-09-08T17:06:31.893Z'
---

## Overview

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

## Affected

- `graph -`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.