Gardyn IoT Hub Multiple Vulnerabilities (Hard-coded Credentials, Public Blob Exposure, Missing Security Headers)
First seen Jul 5, 2026 · Updated Jul 5, 2026 · CVSS 10
Gardyn IoT Hub devices (Home and Studio firmware, Cloud API) contain three vulnerabilities including a critical hard-coded Azure IoT Hub owner key that allows unauthenticated attackers to access connection info and execute arbitrary commands on any connected device. Additional flaws expose device logs via a publicly listable Azure Blob Storage container and allow clickjacking/XSS on the admin panel due to missing security headers. No public exploitation has been reported, and Gardyn has patched server-side infrastructure and recommends firmware/app updates.
Technical Analysis
CVE-2026-13768 (CVSS 3.1: 10.0, CWE-798) is the most severe issue: an embedded privileged iothubowner key lets any attacker invoke IoT Hub Registry Manager functions to enumerate connection strings for all Gardyn Home Kit and Studio devices and issue arbitrary commands to specific devices, with potential lateral movement to other devices on the victim's network. CVE-2026-55726 (CVSS 3.1: 5.3, CWE-497) stems from a publicly listable Azure Blob Storage container holding device logs, exposing potentially sensitive telemetry without authentication. CVE-2026-54477 (CVSS 3.1: 5.4, CWE-644) results from missing security headers on the admin panel, enabling clickjacking and XSS. These are consumer/smart-agriculture IoT devices rather than agent-hosting infrastructure, so there is no direct evidence of impact to AI agent frameworks, RAG pipelines, or LLM tool-use systems; however, organizations that integrate IoT telemetry (e.g., via automation/agent pipelines pulling data from these Azure Blob containers or IoT Hub APIs) should treat the exposed credentials and log data as a potential secrets-leakage vector if such integrations exist.
Affected Systems
Gardyn IoT Hub Home Firmware < master.627; Gardyn Studio Firmware < master.627; Gardyn Cloud API < 2.12.2026
Indicators of Compromise
- No specific IOCs (hashes, IPs, domains) provided in advisory; vulnerability is architectural/configuration-based rather than tied to known malware or exploit artifacts.
Remediation Steps
- 1
Ensure Internet Connectivity for Auto-Update
Confirm Gardyn devices have working internet access so firmware automatically updates to the patched version (master.627 or later).
- 2
Update Mobile Application
Update the Gardyn mobile app to the latest version and verify firmware/app version numbers within the app.
- 3
Vendor-Side Infrastructure Fix Confirmation
Gardyn has stated IoT Hub deployed infrastructure has been updated; verify with vendor security page (mygardyn.com/security) for confirmation of remediation status.
- 4
Network Segmentation
Isolate IoT/OT devices from business networks and the internet where possible; place behind firewalls per CISA ICS best practices.
- 5
Avoid Direct Internet Exposure
Do not expose control system devices directly to the internet; use VPNs with updated, hardened configurations for remote access.
- 6
Contact Vendor Support
Reach out to support@mygardyn.com for further guidance or to confirm device-specific remediation status.
CVE / Advisory IDs
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