CVE-2026-28767: Gardyn Cloud API · Missing Authentication
Affects Gardyn Cloud APISource CVE Database V5
Not known to be exploited · CVSS 6.9 Medium : upgrade to 2.12.2026 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.12.2026
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Gardyn Cloud API to 2.12.2026.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GardynCloud API | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict access to the affected administrative endpoint through network controls such as firewalls or API gateways requiring authentication.
Description
A specific administrative endpoint notifications is accessible without proper authentication.