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CVE-2026-54318

Home-assistant Home Assistant Companion vulnerability

7.1 HIGHPublic exploitEPSS 0.17%
  1. Published23 Jun 2026

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Affected products

Home-assistant Home Assistant Companion< 2026.5.3

Remediation

Fixed in
Home-assistant Home Assistant Companion≥ 2026.5.3

References

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Frequently asked

Is CVE-2026-54318 being actively exploited?

CVE-2026-54318 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.17%.

How severe is CVE-2026-54318?

CVE-2026-54318 has a CVSS 3.1 base score of 7.1, rated high. EPSS estimates a 0.17% probability of exploitation.

Which products are affected by CVE-2026-54318?

Affected products include Home-assistant Home Assistant Companion.

How do I fix CVE-2026-54318?

Upgrade affected software to a fixed version, for example Home-assistant Home Assistant Companion 2026.5.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-54318 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.