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GHSA-9qh4-3jw8-366w

Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

Source: GitHub Advisory Database (reviewed) High CVE-2026-102676

Packages

EcosystemPackageAffectedFixed in
npm electron < 41.10.6 41.10.6
npm electron >= 42.0.0-alpha.1, < 42.9.2 42.9.2
npm electron >= 43.0.0-alpha.1, < 43.4.1 43.4.1
npm electron >= 44.0.0-alpha.1, < 44.0.0-beta.5 44.0.0-beta.5

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact A `<webview>` could enable Node.js integration in its Web Workers even when its embedder had Node.js integration disabled, giving guest content more privilege than the embedder allowed. Apps are only affected if they enable the `<webview>` tag and the embedder is unsandboxed. Apps that do not use `<webview>`, or that keep the embedder sandboxed, are not affected. ### Workarounds Remove `nodeIntegrationInWorker` from the guest preferences in a `will-attach-webview` handler, or do not enable the `<webview>` tag when loading untrusted content. ### Fixed Versions * `44.0.0-beta.5` * `43.4.1` * `42.9.2` * `41.10.6` ### For more information If you have any questions or comments about this advisory, email us at [[email protected]](mailto:[email protected])

References

External links from the advisory. They lead to third-party sites.