# CVE-2026-54318: Home Assistant: Exported BroadcastReceiver allows local apps to spoof device location

> A malicious local app can spoof device location by broadcasting to an unprotected receiver, bypassing mock location checks and triggering unsafe home automations.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jun 2026
- **Updated:** 24 Jun 2026
- **Also known as:** GHSA-77r5-pw5w-mgj3

## What is CVE-2026-54318?

CVE-2026-54318 is a high-severity missing authorization vulnerability in home-assistant core, published on 23 Jun 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 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.

Weakness: CWE-926 (Improper Export of Android Application Components)

## Which versions are affected by CVE-2026-54318?

It affects 1 product.


Products: Home-Assistant Home Assistant Companion.

## How do I fix CVE-2026-54318?

No fix has been published for CVE-2026-54318 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54318 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54318 exists.

## Other vulnerabilities in home-assistant core

- [CVE-2023-41898](https://insights.sbomify.com/CVE-2023-41898/): Arbitrary URL load in Android WebView in `MyActivity.kt` in Home Assistant Companion for Android (high 8.6)
- [CVE-2023-44385](https://insights.sbomify.com/CVE-2023-44385/): Client-Side Request Forgery in Home Assistant iOS/macOS native Apps (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54318 and fix it if it is affected.

What it is: CVE-2026-54318 is a high-severity missing authorization vulnerability in home-assistant core, published on 23 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54318 exists.

Affected product: home-assistant core. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-54318/ (Markdown: https://insights.sbomify.com/CVE-2026-54318/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54318
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54318
- OSV: https://osv.dev/vulnerability/CVE-2026-54318

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-54318/
Summaries are generated and may contain mistakes; the official description above is the record.