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TI-2026-21116 Aliases CVE-2026-26122GHSA-c993-389p-jqhf

Microsoft ACI Confidential Containers Information Disclosure Vulnerability

Priority LOW 31CWE-1188Published · 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

Initialization of a resource with an insecure default 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 0.01012 63rd 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
MicrosoftMicrosoft ACI Confidential Containers-—No fix listedCNA
  • Microsoft ACI Confidential Containers VendorMicrosoft Affected - Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:aci_confidential_containers:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:aci_confidential_containers:-:*:*:*:*:*:*:* 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
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26122
  2. 2026-10-03 Alias added: GHSA-c993-389p-jqhf

References

  • TI-2026-21118 Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability CVSS 3.1MEDIUM 6.7
  • TI-2026-19043 Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability CVSS 3.1MEDIUM 6.7

Sources