Severity: low

SSL Validation Defaults to False



Affected versions of electron-packager configure the generated application to disable SSL certificate verification by default.

This could allow an attacker with a privileged network position to launch a Man In The Middle (MITM) attack on the install process, intercepting the step where electron-packager downloads Electron for supported target platforms and architectures, and replacing the valid download with a tampered malicious one.

This only affects users using the electron-packager CLI. The strict-ssl option defaults to true for the node.js API.


  1. Update to version 7.0.0 or later.
  2. Delete the electron-download cache folder, which is by default located at ~/.electron.


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Advisory timeline

  1. published

    Advisory published
    Apr 22nd, 2016
  2. reported

    Initial report by Mark Lee
    Apr 21st, 2016