HIGH

CVE-2026-71259

2026-08-05 CVSS v3.1

CVSS

8.6

Description

ESPHome through 2026.7.0-dev contains an operator-precedence bug in the cv.url validator in esphome/config_validation.py. Because binds tighter than , any file: URI passes validation regardless of netloc. This validator gates the field of the external_components YAML directive's git source schema, which is passed to (git supports file:// natively).

Weakness (CWE)

CWE-184

EPSS Score

0.12%

Probability of exploitation in next 30 days

2th percentile

References

https://github.com/esphome/esphome https://github.com/esphome/esphome/blob/dev/esphome/config_validation.py

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