CVE-2026-55726
Gardyn IoT Hub Exposure of Sensitive System Information to an Unauthorized Control Sphere
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.
INFO
Published Date :
July 3, 2026, 12:16 a.m.
Last Modified :
July 6, 2026, 7:42 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Configure the Azure Blob Storage container for private access.
- Implement appropriate access controls and authentication.
- Review and audit existing access policies regularly.
Public PoC/Exploit Available at Github
CVE-2026-55726 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-55726.
| URL | Resource |
|---|---|
| https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-183-03.json | |
| https://mygardyn.com/security/ | |
| https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-03 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-55726 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-55726
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CISA Advisory ICSA-26-183-03 - Gardyn IoT Hub - 3 CVEs (companion to ICSA-26-055-03)
azure-iot cisa coordinated-disclosure cve gardyn iot-security remote-code-execution security-research
CVE-2026-55726: Publicly Listable Azure Blob Storage Container (device logs) - Gardyn (ICSA-26-183-03)
azure-blob-storage cisa coordinated-disclosure cve gardyn iot-security security-research vulnerability-disclosure
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55726 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-55726 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 06, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-55726', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-06T15:44:11.035924Z'} -
New CVE Received by [email protected]
Jul. 03, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Gardyn', 'product': 'Gardyn Home Firmware', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'master.627', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Gardyn', 'product': 'Gardyn Studio Firmware', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'master.627', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Gardyn', 'product': 'Gardyn Cloud API', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.12.2026', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-497 Added Reference https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-183-03.json Added Reference https://mygardyn.com/security/ Added Reference https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-03