CVE-2026-71260 — ESPHome web_server Plaintext Password Disclosure via JSON "value" Field
ESPHome through 2026.7.0-dev discloses plaintext passwords via its web_server component. In WebServer::text_json_ (esphome/components/web_server/web_server.cpp), a text entity c…
Published: 2026-08-05 · CVSS: 6.5 · CVSS 3.1
ESPHome through 2026.7.0-dev discloses plaintext passwords via its web_server component. In WebServer::text_json_ (esphome/components/web_server/web_server.cpp), a text entity configured with mode: password (TEXT_MODE_PASSWORD) has its JSON "state" field correctly masked as "********", but the same serialization path unconditionally writes the raw password into the JSON "value" field via set_json_icon_state_value/set_json_value.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7