CVE-2026-47655: Microsoft Graph information disclosure

CVE-2026-47655 · Severity: medium · CVSS 6.5 · Published 2026-06-04

Microsoft Graph, the gateway to data and intelligence in Microsoft 365, contains a vulnerability that could allow an authorized user to access sensitive information they are not permitted to see. An attacker with basic user credentials could exploit this flaw over the network to disclose internal data. This could lead to the exposure of confidential organizational information, potentially impacting privacy and compliance.

Technologies: Microsoft Graph. Vendors: Microsoft.

Quick answers

Is CVE-2026-47655 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47655 being exploited in the wild.
How severe is CVE-2026-47655?
Medium severity, with a CVSS score of 6.5, published 4 June 2026.
Which products and versions are affected?
Microsoft Graph.
Is there a fix for CVE-2026-47655?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-47655 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-47655?
Check whether you run Microsoft Graph. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An information disclosure vulnerability exists in Microsoft Graph, classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The flaw allows an attacker with low-privileged user accounts to bypass intended access restrictions and retrieve sensitive information via network requests. The attack vector is network-based and requires no user interaction, though the attacker must be authenticated to the service. Successful exploitation results in a high impact on confidentiality, while integrity and availability remain unaffected. As this is an exclusively hosted service, Microsoft typically manages the remediation on the backend.

Affected products

  • Microsoft Graph

Timeline

  • 2026-06-04: disclosed: Initial publication of CVE-2026-47655 by Microsoft.
  • 2026-06-04: advisory

References

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