GHSA-9qh4-3jw8-366w Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

• npm electron: < 41.10.6 → fixed in 41.10.6 • npm electron: >= 42.0.0-alpha.1, < 42.9.2 → fixed in 42.9.2 • npm electron: >= 43.0.0-alpha.1, < 43.4.1 → fixed in 43.4.1 • npm electron: >= 44.0.0-alpha.1, < 44.0.0-beta.5 → fixed in 44.0.0-beta.5

Impact A `` 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 `` tag and the embedder is unsandboxed. Apps that do not use ``, 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 `` 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]