CVE-2026-66061 Home Assistant: iOS Companion app forwards NFC/QR tag scans without confirmation, enabling silent automation execution
Untrusted iOS apps can silently trigger Home Assistant automations by forwarding NFC/QR tags without user confirmation or validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66061?
CVE-2026-66061 is a high-severity missing authorization vulnerability in home-assistant core, published on 7 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-66061?
How do I fix CVE-2026-66061?
No fix has been published for CVE-2026-66061 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-66061 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66061 exists.
Sources
Also known as GHSA-j23v-9672-677j.