MediumGHSA-f9mq-jph6-9mhmCVE-2020-4075

Arbitrary file read via window-open IPC in Electron

Published 7 Jul 2020 · Updated 8 Jul 2026

Affected packages

electronnpm
Affected
<7.2.4
Fixed in
7.2.4
Update to the fixed version for your release line, for example:npm install electron@7.2.4
electronnpm
Affected
>=8.0.0 <8.2.4
Fixed in
8.2.4
Update to the fixed version for your release line, for example:npm install electron@8.2.4

Details

Impact

The vulnerability allows arbitrary local file read by defining unsafe window options on a child window opened via window.open.

Workarounds

Ensure you are calling event.preventDefault() on all `new-window` events where the url or options is not something you expect.

Fixed Versions

  • 9.0.0-beta.21
  • 8.2.4
  • 7.2.4

For more information

If you have any questions or comments about this advisory:

  • Email us at [security@electronjs.org](mailto:security@electronjs.org)

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.