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TI-2026-21138 Aliases CVE-2026-26147GHSA-jp7v-xgrx-wqjf

Azure Stack HCI Information Disclosure Vulnerability

Priority LOW 34CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Improper input validation in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00579 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftAzure Stack HCI-—No fix listedCNA
  • Azure Stack HCI VendorMicrosoft Affected - Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:azure_stack_hci:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:azure_stack_hci:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26147
  2. 2026-10-03 Alias added: GHSA-jp7v-xgrx-wqjf
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

  • TI-2026-48837 Azure Stack HCI Information Disclosure Vulnerability CVSS 3.1HIGH 8.6
  • TI-2024-32725 Azure Stack HCI Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-25462 Azure Stack Hyperconverged Infrastructure (HCI) Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences