CVE-2026-33044

MEDIUM

Home Assistant has stored XSS in Map-card through malicious device name

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.4
EPSS 0.0002
EPSS Percentile 5.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (3)
home-assistant/core >= 2020.02, < 2026.01
home-assistant/home-assistant 2020.02 - 2026.1.0
pypi/homeassistant 2020.02 - 2026.01PyPI
Published Mar 27, 2026
Tracked Since Mar 29, 2026