CVE-2026-28766 | BDVDB-2026-324658 Detail

GardynCloud API

Description#

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

Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact none. Attack vector: network.

No public exploit known

9.3 Critical

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 38.9.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Authentication Issues

No specific action is recorded in the source data. Check the references for vendor guidance.

9.2 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	Low
Vulnerable System Availability	None
Subsequent System Confidentiality	High
Subsequent System Integrity	Low
Subsequent System Availability	None

9.3 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).