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CVE-2026-49159Critical

Microsoft Graph Information Disclosure Vulnerability

MSRC advisory NVD CVE.org

Assessment

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

Severity
Critical
CVSS base score
6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Impact
Information Disclosure
EPSS, next 30 days
1.0%Higher than 61.2% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Not assessed
Publicly disclosed
No
Customer action
Not required (service-side fix)
Component
Microsoft Graph
Weakness
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Issued by
Microsoft
Published
23 Jul 2026 · July 2026
Last revised
23 Jul 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Azure
1 affected product
  • Microsoft Graph
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