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TI-2026-39213 Aliases CVE-2026-54318

Home Assistant: Exported BroadcastReceiver allows local apps to spoof device location

Priority MEDIUM 64CWE-926Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2026.5.3, the LocationSensorManager BroadcastReceiver is exported with no permission. Any installed app, with zero runtime permissions, can broadcast a forged Google Play Services LocationResult directly to it; the receiver trusts the extra and forwards it to the user's Home Assistant server as the device's real location. This bypasses Android's developer-mode "Mock Location" gate and allows a local malicious app to drive zone-based automations (unlock door / disarm alarm / open garage) by faking the user's GPS position. This vulnerability is fixed in 2026.5.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed core (home-assistant): 2026.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
home-assistantcorebefore 2026.5.32026.5.3Patch availableCNA
  • core Vendorhome-assistant Affected before 2026.5.3 Fixed in 2026.5.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:home-assistant:home_assistant_companion:*:*:*:*:*:android:*:*before 2026.5.3Vulnerablehome-assistant
  • cpe:2.3:a:home-assistant:home_assistant_companion:*:*:*:*:*:android:*:* Versions before 2026.5.3 Vulnerable ·home-assistant

Remediation

  • Fix · CNA core (home-assistant) Fixed in 2026.5.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54318

References

Exploit 1

Patch 1

  • TI-2023-23891 Client-Side Request Forgery in Home Assistant iOS/macOS native Apps CVSS 3.1HIGH 8.8
  • TI-2023-22290 Arbitrary URL load in Android WebView in `MyActivity.kt` in Home Assistant Companion for Android CVSS 3.1HIGH 8.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences