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Chromium FileReader Vulnerability Fix

· One min read

A High severity vulnerability has been discovered in Chrome which affects all software based on Chromium, including Electron.

This vulnerability has been assigned CVE-2019-5786. You can read more about it in the Chrome Blog Post.

Please note that Chrome has reports of this vulnerability being used in the wild so it is strongly recommended you upgrade Electron ASAP.


This affects any Electron application that may run third-party or untrusted JavaScript.


Affected apps should upgrade to a patched version of Electron.

We've published new versions of Electron which include fixes for this vulnerability:

The latest beta of Electron 5 was tracking Chromium 73 and therefore is already patched:

Further Information

This vulnerability was discovered by Clement Lecigne of Google's Threat Analysis Group and reported to the Chrome team. The Chrome blog post can be found here.

To learn more about best practices for keeping your Electron apps secure, see our security tutorial.

If you wish to report a vulnerability in Electron, email