Vulnerability · Published Apr 3, 2026 · Assigned by icscert

CVE-2026-25197Gardyn Cloud API Authorization Bypass Through User-Controlled Key

Critical 9.1

In plain English

A critical-severity authorization bypass via user-controlled key in Cloud API from Gardyn. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.3%top 77.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

A specific endpoint allows authenticated users to pivot to other user profiles by modifying the id number in the API call.

Affected products (as reported)

VendorProductVersions
Gardyn Cloud API 0 – before 2.12.2026

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References