EUVD-2026-16774
GHSA-r584-6283-p7xc
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Tags
Description
Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, an authenticated party can add a malicious name to their device entity, allowing for Cross-Site Scripting attacks against anyone who can see a dashboard with a Map-card which includes that entity. It requires that the victim hovers over an information point. Version 2026.01 fixes the issue.
Analysis
Cross-site scripting in Home Assistant's Map card component allows authenticated users to inject malicious JavaScript through device entity names, executing arbitrary code in victims' browsers when they hover over map information points. Affects Home Assistant versions 2020.02 through 2026.0.x, with fix released in version 2026.01. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 24 hours: Inventory all Home Assistant deployments and document current versions across the organization. Within 7 days: Upgrade all affected Home Assistant instances to version 2026.01 or later. …
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today