CVE-2026-71260: Esphome

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Esphome Esphome: up to and including 2026.7.0

Published 2026-08-05. Last modified 2026-08-26.