CVE-2026-55726Network attack vector

Unauthenticated device-log disclosure via public blob storage

Published Jul 2, 2026 · Updated Jul 2, 2026

Information disclosure in Gardyn Cloud API before 2.12.2026 and device firmware before master.627 allows remote attackers to read device logs. The device-log Azure Blob container permits anonymous container listing and object reads instead of enforcing private access. No account or user interaction is required; exposed logs contain device identifiers, Wi-Fi SSIDs, internal paths, configurations, firmware versions, boot data, scheduled-task details, and errors.

CVSS severity6.9
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Gardyn Cloud API before 2.12.2026 and device firmware before master.627 allows remote attackers to read device logs. The device-log Azure Blob container permits anonymous container listing and object reads instead of enforcing private access. No account or user interaction is required; exposed logs contain device identifiers, Wi-Fi SSIDs, internal paths, configurations, firmware versions, boot data, scheduled-task details, and errors.

The record

CVE
CVE-2026-55726
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Gardyn
Product
Gardyn Studio Firmware
Classifications
CWE-497, T1530
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <master.627

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Gardyn · Gardyn Studio Firmwareversion=0 <master.627
Gardyn · Gardyn Cloud APIversion=0 <2.12.2026
Gardyn · Gardyn Home Firmwareversion=0 <master.627

Published CVSS scores

6.9ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:L
5.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere
T1530Data from Cloud Storage

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

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Your stack

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