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CVE-2026-33044

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

Published: Mar 27, 2026Updated: Mar 31, 2026 Sources: CVE List NVDCWE-79
5.4MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 85.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

home-assistanthome-assistant
On-prem
ICS / OT / IoT / smart-home
corehome-assistant
On-prem
ICS / OT / IoT / smart-home
home-assistantoss-projectICS / OT / IoTaka home assistant, home-assistant.io, homeassistant

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/home-assistant/core/security/advisories/GHSA-r584-6283-p7xc
github.com

Timeline

Published
Mar 27, 2026
Last Updated
Mar 31, 2026

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