CVE-2026-28766
CriticalPublished
Gardyn Cloud API Missing Authentication for Critical Function
- Published
- Apr 3, 2026
- Updated
- Apr 7, 2026
- Assigning CNA
- icscert
- Evidence observed
- Aug 17, 2026
Primary CVSS
9.2/ 10Critical
nvd · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/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:X0.4%
Low · next 30 days
- Percentile
- 37.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
A specific endpoint exposes all user account information for registered Gardyn users without requiring authentication.
Sources
1- CVE-2026-28766Informational
CVE-2026-28766: Missing Authentication on User Account Endpoint — Gardyn Home Kit (ICSA-26-055-03)
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