CVE-2026-28766

critical · 9.2

A specific endpoint exposes all user account information for registered Gardyn users without requiring authentication.

9.2

CVSS

0.4%

EPSS (exploit prob.)

37th

EPSS percentile

2026-04-03

Published

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:X

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
mygardyn	cloud_api	< 2.12.2026

Check a specific version with /api/v1/cve/match.

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-055-03.json
https://mygardyn.com/security/
https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-03

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-28766