CVE-2026-34205 — Home Assistant: Unauthenticated App (Add-on) Endpoints Exposed to Local Network via Host Network Mode
Home Assistant is open source home automation software that puts local control and privacy first. Home Assistant apps (formerly add-ons) configured with host network mode expose…
Published: 2026-03-27 · CVSS: 9.7 · CVSS 3.1
Home Assistant is open source home automation software that puts local control and privacy first. Home Assistant apps (formerly add-ons) configured with host network mode expose unauthenticated endpoints bound to the internal Docker bridge interface to the local network. On Linux, this configuration does not restrict access to the app as intended, allowing any device on the same network to reach these endpoints without authentication. Home Assistant Supervisor 2026.03.02 addresses the issue.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7