Gardyn IoT Hub Exposure of Sensitive System Information to an Unauthorized Control Sphere
Summary
| CVE | CVE-2026-55726 |
|---|---|
| State | PUBLISHED |
| Assigner | icscert |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-03 00:16:52 UTC |
| Updated | 2026-07-06 19:42:59 UTC |
| Description | The Azure Blob Storage container used for Gardyn device logs is publicly listable without authentication. A malicious user would be able to access any device log file available in the blob storage container. |
Risk And Classification
Primary CVSS: v4.0 6.9 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.003590000 probability, percentile 0.279190000 (date 2026-07-06)
Problem Types: CWE-497 | CWE-497 CWE-497
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 6.9 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:L/E:X/C... |
| 4.0 | CNA | CVSS | 6.9 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:L |
| 3.1 | [email protected] | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | CNA | CVSS | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Gardyn | Gardyn Home Firmware | affected master.627 custom | Not specified |
| CNA | Gardyn | Gardyn Studio Firmware | affected master.627 custom | Not specified |
| CNA | Gardyn | Gardyn Cloud API | affected 2.12.2026 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-18... | [email protected] | github.com | |
| mygardyn.com/security | [email protected] | mygardyn.com | |
| www.cisa.gov/news-events/ics-advisories/icsa-26-183-03 | [email protected] | www.cisa.gov | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Michael Groberman reported this vulnerability to CISA. (en)
Additional Advisory Data
Solutions
CNA: Gardyn states that IoT Hub deployed infrastructure has been updated to fix the listed vulnerabilities.
Workarounds
CNA: Gardyn requests that users ensure their devices have Internet connectivity in order to automatically download needed firmware updates. Unconnected devices will automatically update when configured with a working Internet connection. Gardyn also recommends that users update their mobile application to the most recent version. The current versions of the Gardyn App and the Gardyn Home firmware can be checked in the Gardyn App. Further information on Gardyn security can be found here: https://mygardyn.com/security/ Further customer support can be obtained from Gardyn at: [email protected] mailto:[email protected]