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CVE-2026-54477

Gardyn IoT Hub Improper Neutralization of HTTP Headers for Scripting Syntax

MEDIUM
5.4
CVSS Score
Published: July 2, 2026 at 11:52 PM UTC
Updated: July 6, 2026 at 07:53 PM UTC
3 products affected across 1 vendorCloud APIGardyn StudioGardyn Home

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

The admin panel lacks standard security headers, enabling clickjacking and cross-site scripting attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cloud API· Gardyn
60%
v < 2.12.2026
Affected range stops below 2.12.2026, so it looks safe — our inference, not a vendor statement
Gardyn Home· Gardyn
60%
v < master.627
Affected range stops below master.627, so it looks safe — our inference, not a vendor statement
Gardyn Studio· Gardyn
60%
v < master.627
Affected range stops below master.627, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: [email protected]
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-183-03.json
Source: [email protected]
https://mygardyn.com/security/
Source: [email protected]
https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-03

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-644

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