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CVE-2026-33044— Home Assistant has stored XSS in Map-card through malicious device name

Quick assessment

Affected
home-assistant core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Home Assistant是Home Assistant开源的一套开源的家庭自动化管理系统。该系统主要用于控制家庭自动化设备。 Home Assistant 2020.02版本至2026.01之前版本存在跨站脚本漏洞，该漏洞源于经过身份验证的方可以向其设备实体添加恶意名称，可能导致对能够看到包含该实体的带有地图卡片仪表板的任何人进行跨站脚本攻击。

AI Predicted 6.1 Difficulty: Easy EPSS 0.28% · P19
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I. Basic Information for CVE-2026-33044

Vulnerability Information
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Vulnerability Title
Home Assistant has stored XSS in Map-card through malicious device name
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Home Assistant 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Home Assistant是Home Assistant开源的一套开源的家庭自动化管理系统。该系统主要用于控制家庭自动化设备。 Home Assistant 2020.02版本至2026.01之前版本存在跨站脚本漏洞，该漏洞源于经过身份验证的方可以向其设备实体添加恶意名称，可能导致对能够看到包含该实体的带有地图卡片仪表板的任何人进行跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
home-assistant core >= 2020.02, < 2026.01 -

II. Public POCs for CVE-2026-33044

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III. Intelligence Information for CVE-2026-33044

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Vendor Advisories for CVE-2026-33044 (1)

Same Patch Batch · home-assistant · 2026-03-27 · 3 CVEs total

CVE-2026-34205 9.7 CRITICAL Home Assistant: Unauthenticated App (Add-on) Endpoints Exposed to Local Network via Host N
CVE-2026-33045 Home Assistant has stored XSS in history-graphs

IV. Related Vulnerabilities

Same product: core
Same vendor: home-assistant
Same weakness: CWE-79

V. Comments for CVE-2026-33044

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