Electron: Cross-origin iframe can position native autofill popup
Published 5 Aug 2026 · Updated 5 Aug 2026
Affected packages
- Affected
- <39.8.8
- Fixed in
- 39.8.8
npm install electron@39.8.8- Affected
- >=40.0.0-alpha.1 <40.9.1
- Fixed in
- 40.9.1
npm install electron@40.9.1- Affected
- >=41.0.0-alpha.1 <41.2.1
- Fixed in
- 41.2.1
npm install electron@41.2.1- Affected
- >=42.0.0-alpha.1 <42.0.0-beta.3
- Fixed in
- 42.0.0-beta.3
npm install electron@42.0.0-beta.3Details
Impact
The native autofill popup could be positioned by a cross-origin iframe outside that iframe's bounds, over the embedding page's UI, enabling clickjacking or spoofing of trusted UI.
Apps are only affected if they embed untrusted content in iframes within windows that also display trusted UI. Apps that do not embed untrusted third-party content are not affected.
Workarounds
Do not embed untrusted content in iframes inside windows that display trusted UI.
Fixed Versions
42.0.0-beta.341.2.140.9.039.8.8
For more information
If you have any questions or comments about this advisory, email Electron at [security@electronjs.org](mailto:security@electronjs.org)
Is GHSA-x8rc-wpg4-grpf in any of your client repos?
Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected electron, and gives you the command that fixes it.
References
Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.