CVE-2026-71259

Summary

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).

Affected Software

Weaknesses

• CWE-184: CWE-184

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

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

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