CVE-2026-66060

HIGH 7.1

Home Assistant: Unconfirmed NFC/QR tag scans allow silent automation execution by untrusted callers

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.5.3, the Companion app treats tag links (NFC or QR) delivered through an OS-level routing mechanism as if they were physically scanned, without validating the calling app or prompting the user. As a result, any untrusted app on the device can forward an arbitrary tag to Home Assistant, causing it to execute the associated automation as though a legitimate user had scanned an authorized tag. This allows silent, unattended automation execution by untrusted local callers. This issue is fixed in version 2026.8.1.

CWE	CWE-862
Vendor	home-assistant
Product	core
Published	Aug 7, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

home-assistant / core

< 2026.5.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/home-assistant/core/security/advisories/GHSA-2xqv-hwrf-983f github.com: https://github.com/home-assistant/android/commit/968b49c58e4eba4d06371a3f6e73198ec6c8d4a7