MSRC-CVE-2026-23655 — Microsoft ACI Confidential Containers Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is secret tokens and keys.

Security updates
2.12 — https://github.com/microsoft/confidential-sidecar-containers/releases

Vulnerabilities 1

Medium 6.5

CVE-2026-23655

Microsoft ACI Confidential Containers Information Disclosure Vulnerability

Cleartext storage of sensitive information in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

Microsoft Microsoft ACI Confidential Containers

Feb 10, 2026

Revision history

2026-02-10 #1
Information published.

References

CVE-2026-23655 Microsoft ACI Confidential Containers Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23655
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss