Incomplete List of Disallowed Inputs Affecting esphome package, versions [,2026.7.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-ESPHOME-18912942
- published18 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-71259 (opens in a new tab)How to fix?
Upgrade esphome to version 2026.7.0 or higher.
Overview
esphome is a Make creating custom firmwares for ESP32/ESP8266 super easy.
Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs in the url field of the external_components YAML directive due to improper validation in the cv.url() function. An attacker can execute arbitrary Python code by supplying a crafted file:// URI that causes the application to clone and load attacker-controlled code during configuration processing.