CVE-2026-71260
mediumpriority · track · 0EPSS 0.003 · 20 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/esphome/esphomecnnvd
- https://github.com/esphome/esphome/blob/dev/esphome/components/web_server/web_server.cppcnnvd
- https://github.com/esphome/esphome/releasesPatchcnnvd
- https://github.com/esphome/esphomeenisa_euvd
- https://github.com/esphome/esphome/blob/dev/esphome/components/web_server/web_server.cppenisa_euvd
- https://github.com/esphome/esphomenvd
- https://github.com/esphome/esphome/blob/dev/esphome/components/web_server/web_server.cppnvd
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