GHSA-9qh4-3jw8-366w

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

At a glance

Published
Updated
CVE
CVE-2026-102676
CVSS_V3
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Description

### 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 [security@electronjs.org](mailto:security@electronjs.org)

Affected packages

PackageVersions
npm · electronintroduced 0, fixed 41.10.6
npm · electronintroduced 42.0.0-alpha.1, fixed 42.9.2
npm · electronintroduced 43.0.0-alpha.1, fixed 43.4.1
npm · electronintroduced 44.0.0-alpha.1, fixed 44.0.0-beta.5

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database