CVE-2026-28766criticalCWE-306

CVE-2026-28766: critical vulnerability in Gardyn Cloud API

Gardyn Cloud API Missing Authentication for Critical Function

Published · Updated

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48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.2epss 0.4%
from disclosure to weapon4 days
Published on NVDApr 3
1st PoC+4d
A specific endpoint exposes all user account information for registered Gardyn users without requiring authentication.
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
Affected products
Gardyn · Cloud API
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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