iOS Companion App Vulnerability in Home Assistant Software
CVE-2026-55844

7.5HIGH

Key Information:

Vendor

Home-assistant

Status
Core
Vendor
CVE Published:
29 June 2026

What is CVE-2026-55844?

The iOS companion app of Home Assistant, an open-source home automation platform focused on local control and privacy, is susceptible to an improper network configuration flaw. Prior to version 2025.5.0, the app fails to respect the SSID allowlist for internal networks, potentially leading to the unintended fallback to internal URLs. This behavior risks exposing user tokens when the app connects to untrusted networks, thereby compromising user security and privacy.

Affected Version(s)

core < 2025.5.0

References

https://github.com/home-assistant/core/security/advisorie...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.