CVE-2026-54477 Gardyn IoT Hub Improper Neutralization of HTTP Headers for Scripting Syntax
Attackers can execute scripts or perform clickjacking via the admin panel due to missing security headers, affecting Gardyn IoT devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-54477?
CVE-2026-54477 is a medium-severity cross-site scripting vulnerability in Gardyn Cloud API, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The admin panel lacks standard security headers, enabling clickjacking and cross-site scripting attacks.
Weakness: CWE-644
Which versions are affected by CVE-2026-54477?
How do I fix CVE-2026-54477?
No fix has been published for CVE-2026-54477 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-54477 being exploited?
There is no known exploitation of CVE-2026-54477 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-9qxq-9wpj-4f86.