CVE-2026-66061: Home Assistant: iOS Companion app forwards NFC/QR tag scans without confirmation, enabling silent automation execution
Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.5.0, the iOS Companion app treats tag links (NFC or QR) delivered through an OS-level routing mechanism such as iOS universal links 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 has been fixed in version 2026.5.0.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Home Assistant (iOS Companion app)to a version that resolves this vulnerability.Fixed in 2026.5.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-66061?
The severity of CVE-2026-66061 is high, with a score of 7.1.
How do I fix CVE-2026-66061?
To fix CVE-2026-66061, update the Home Assistant iOS Companion app to version 2026.5.0 or later.
What impact does CVE-2026-66061 have on users?
CVE-2026-66061 allows unauthorized execution of automations via NFC or QR tag scans without user confirmation.
Is CVE-2026-66061 specific to the iOS Companion app?
Yes, CVE-2026-66061 specifically affects the Home Assistant iOS Companion app.
When was CVE-2026-66061 published?
CVE-2026-66061 was published on August 7, 2026.