6.5

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 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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstelleresphome
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Produkt esphome
Default Statusunaffected
Version <= 2026.7.0
Version 0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.142
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c 6.5 2.8 3.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-522 Insufficiently Protected Credentials

The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

https://github.com/esphome/esphome
https://github.com/esphome/esphome/blob/dev/esphome/components/web_server/web_server.cpp