Medium severity · published Jul 2, 2026
CVE-2026-54477
Gardyn IoT Hub Improper Neutralization of HTTP Headers for Scripting Syntax
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
The admin panel lacks standard security headers, enabling clickjacking and cross-site scripting attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GC
Gardyn Cloud API · Gardyn
before 2.12.2026 · source: vendor
GH
Gardyn Home Firmware · Gardyn
before master.627 · source: vendor
GS
Gardyn Studio Firmware · Gardyn
before master.627 · source: vendor
In the news
VulnerabilityCritical
Gardyn IoT Hub
View CSAF
Summary
Successful exploitation of these vulnerabilities could allow unauthenticated users to access and control IoT Hub managed devices.
The following versions of Gardyn IoT Hub are affected:
Home Firmware
Studio Firmware
Cloud API <2.12.2026 (CVE-2026-13768, CVE-2026-55726, CVE-2026-54477)
CVSS
Vendor
Equipment
Vulnerabilities
v3 10
Gardyn
Gardyn IoT Hub
Use of Hard-coded Credentials, Exposure of Sensitive System Information to an Unauthorized Control Sphere, Improper Neutralization of HTTP Headers for Scripting Syntax
Background
Critical Infrastructure Sectors: Food and Agriculture
Countries/Areas Deployed: United States
Company Headquarters Location: United States
Vulnerabilities
Expand All +
CVE-2026-13768
Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub Registry Manager function which returns connection information for all Gardyn Home Kit and Studio devices. Access to this key also allows a malicious user to execute arbitrary commands on a specific connected device and may allow the malicious user to pivot to other devices on the user's network.
View CVE Details
Affected Products
Gardyn IoT Hub
Vendor: Gardyn
Product Version: Gardyn Home Firmware: <master.627, Gardyn Studio Firmware: <master.627, Gardyn Cloud API: <2.12.2026
Product Status: known_affected
...
Jul 2, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54477
github.com
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-183-03.json
mygardyn.com
https://mygardyn.com/security/
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-03
More from Gardyn Cloud API
10.0
CVE-2026-13768
Gardyn IoT Hub Use of Hard-coded Credentials
5.3
CVE-2026-55726
Gardyn IoT Hub Exposure of Sensitive System Information to an Unauthorized Control Sphere
