CVE-2026-23655Network attack vector

Authenticated secret disclosure via cleartext gallery storage

Published Feb 10, 2026 · Updated Feb 10, 2026

Cleartext storage in Azure Compute Gallery for Microsoft ACI Confidential Containers before 2.12 lets remote authenticated users read tokens and keys. Microsoft identifies the gallery as the cleartext-storage locus but has not published the storage object, write path, or retrieval operation. Exploitation requires low-privileged network access; the documented consequence is disclosure without integrity or availability loss.

CVSS severity6.5
Medium
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cleartext storage in Azure Compute Gallery for Microsoft ACI Confidential Containers before 2.12 lets remote authenticated users read tokens and keys. Microsoft identifies the gallery as the cleartext-storage locus but has not published the storage object, write path, or retrieval operation. Exploitation requires low-privileged network access; the documented consequence is disclosure without integrity or availability loss.

The record

CVE
CVE-2026-23655
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
Microsoft
Product
Confidential containers on Azure Container Instances
Classifications
CWE-312
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <2.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Confidential containers on Azure Container Instancesversion=1.0.0 <2.12

Published CVSS scores

5.7Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
6.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo