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CVE-2026-34780
HIGH · CVSS 8.3
EPSS exploitation probability: 0%
Published 2026-04-04T01:16:39.540 · Last modified 2026-06-30T03:18:58.697

Summary

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From versions 39.0.0-alpha.1 to before 39.8.0, 40.0.0-alpha.1 to before 40.7.0, and 41.0.0-alpha.1 to before 41.0.0-beta.8, apps that pass VideoFrame objects (from the WebCodecs API) across the contextBridge are vulnerable to a context isolation bypass. An attacker who can execute JavaScript in the main world (for example, via XSS) can use a bridged VideoFrame to gain access to the isolated world, including any Node.js APIs exposed to the preload script. Apps are only affected if a preload script returns, resolves, or passes a VideoFrame object to the main world via contextBridge.exposeInMainWorld(). Apps that do not bridge VideoFrame objects are not affected. This issue has been patched

Affected products

electronjs — electron

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.