Description
Cleartext storage of sensitive information in Azure Compute Gallery allows an authorized attacker to disclose information over a network.
Published: 2026-02-10
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Information Disclosure
Action: Immediate Patch
AI Analysis

Impact

Affected Microsoft ACI Confidential Containers store sensitive data in cleartext within the Azure Compute Gallery, allowing an authorized attacker to retrieve that information over a network. This leads to an exposure of confidential data without modification or denial of service, and is classified under CWE-312, a cryptographic or data storage weakness. The vulnerability does not grant arbitrary code execution or privilege escalation, but can reveal secrets that may be leveraged in further attacks.

Affected Systems

Microsoft ACI Confidential Containers are impacted; no specific versions were provided in the CNA data or documentation.

Risk and Exploitability

The CVSS base score of 6.5 places the issue in the medium severity range. An EPSS score of less than 1% indicates a very low likelihood of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is inferred to be network‑based and requires authorized access to the gallery, meaning an adversary would need legitimate credentials or internal access to the Azure environment to exploit this weakness.

Generated by OpenCVE AI on April 15, 2026 at 16:31 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Microsoft ACI Confidential Containers update that eliminates cleartext storage of secrets.
  • Configure Azure Compute Gallery to enforce encryption at rest and in transit for all stored sensitive data.
  • Restrict network access to the gallery and enforce least‑privilege policies for users and service principals.
  • Disable or delete any unused Compute Gallery resources that could inadvertently expose confidential information.

Generated by OpenCVE AI on April 15, 2026 at 16:31 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 25 Feb 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft confidential Sidecar Containers
CPEs cpe:2.3:a:microsoft:confidential_sidecar_containers:*:*:*:*:*:*:*:*
Vendors & Products Microsoft confidential Sidecar Containers

Wed, 11 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft confidental Containers
Vendors & Products Microsoft confidental Containers

Wed, 11 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 10 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description Cleartext storage of sensitive information in Azure Compute Gallery allows an authorized attacker to disclose information over a network.
Title Microsoft ACI Confidential Containers Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft microsoft Aci Confidential Containers
Weaknesses CWE-312
CPEs cpe:2.3:a:microsoft:microsoft_aci_confidential_containers:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft microsoft Aci Confidential Containers
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Confidental Containers Confidential Sidecar Containers Microsoft Aci Confidential Containers
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-11T21:25:23.224Z

Reserved: 2026-01-14T16:59:33.462Z

Link: CVE-2026-23655

cve-icon Vulnrichment

Updated: 2026-02-11T15:31:04.308Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-10T18:16:36.137

Modified: 2026-02-25T14:19:13.853

Link: CVE-2026-23655

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T17:45:10Z

Weaknesses