Insecure Default Initialization of Resource Affecting electron package, versions >=39.0.0-alpha.1 <39.8.0>=40.0.0-alpha.2 <40.7.0>=41.0.0-alpha.1 <41.0.0-beta.8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-ELECTRON-15875855
- published3 Apr 2026
- disclosed3 Apr 2026
- creditUnknown
Introduced: 3 Apr 2026
NewCVE-2026-34780 (opens in a new tab)How to fix?
Upgrade electron to version 39.8.0, 40.7.0, 41.0.0-beta.8 or higher.
Overview
electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS.
Affected versions of this package are vulnerable to Insecure Default Initialization of Resource in the transfer of VideoFrame objects via contextBridge. An attacker can gain access to the isolated world, including any Node.js APIs exposed to the preload script, by executing JavaScript in the main world and leveraging a bridged VideoFrame object.
Note:
This is only exploitable if a preload script returns, resolves, or passes a VideoFrame object to the main world via contextBridge.exposeInMainWorld().
Workaround
This vulnerability can be mitigated by not passing VideoFrame objects across contextBridge and instead serializing video frame data to an ArrayBuffer or ImageBitmap before bridging.