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Information Disclosure in Microsoft Graph

IdentifiersCVE-2026-47655CWE-200· Exposure of Sensitive Information…

CVE-2026-47655 is an information disclosure vulnerability in Microsoft Graph. According to the provided advisory content, the issue is an exposure of sensitive information to an unauthorized actor that allows an authorized attacker to disclose sensitive information over a network. The available material does not identify a specific vulnerable function, API endpoint, or code path, only that the flaw exists within the Microsoft Graph service and results in unauthorized exposure of data.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authorized attacker to obtain and disclose sensitive information over the network to an unauthorized actor. The primary security impact is loss of confidentiality of data accessible through the vulnerable Microsoft Graph service behavior.

Mitigation

If you can’t patch tonight, do this now.

No customer mitigation is required. Microsoft states the vulnerability has already been fully mitigated by Microsoft, with no user or administrator action necessary.

Remediation

Patch, then assume compromise.

No customer remediation is required. Microsoft states the issue has already been fully mitigated on the service side and that the CVE was published for transparency rather than to require customer patching or configuration changes.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationGraphapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.