CVE-2026-66060: Home Assistant: Unconfirmed NFC/QR tag scans allow silent automation execution by untrusted callers
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Home Assistantto a version that resolves this vulnerability.Fixed in 2026.8.1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-66060?
The severity of CVE-2026-66060 is rated high with a CVSS score of 7.1.
How do I fix CVE-2026-66060?
To fix CVE-2026-66060, update the Home Assistant Companion app to version 2026.5.3 or later.
What vulnerability does CVE-2026-66060 address?
CVE-2026-66060 addresses an issue where unconfirmed NFC/QR tag scans could allow silent automation execution by untrusted callers.
Which applications are affected by CVE-2026-66060?
CVE-2026-66060 affects the Home Assistant Companion app prior to version 2026.5.3.
Can CVE-2026-66060 lead to unauthorized access?
Yes, CVE-2026-66060 can lead to unauthorized access and execution of automations without user consent.