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7.1

Home Assistant iOS Companion app allows unauthorized automation execution

CVE-2026-66061 · published 2 months ago
Summary

The Home Assistant iOS app does not verify the source of NFC or QR tag scans. This means that if another app on your iPhone forwards a tag to Home Assistant, it can execute an automation without your knowledge or permission. To fix this, update to version 2026.5.0 or later.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
home-assistant core < 2026.5.0
Original advisory text
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.1 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-862Missing Authorization
Timeline
Published7 Aug 2026
Updated4 Nov 2026
First seen7 Aug 2026
Sources
CVE-2026-66061 · OSV
GHSA-j23v-9672-677j · GHSA
CVE-2026-66061 · NVD
CVE-2026-66061 · MITRE
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