Use After Free Affecting electron package, versions <38.8.6>=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.7
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-15876710
- published3 Apr 2026
- disclosed3 Apr 2026
- creditUnknown
Introduced: 3 Apr 2026
CVE-2026-34772 (opens in a new tab)How to fix?
Upgrade electron to version 38.8.6, 39.8.0, 40.7.0, 41.0.0-beta.7 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 Use After Free in the download save dialog callback process. An attacker can cause a crash or memory corruption by triggering session destruction while a native save-file dialog is open and then dismissing the dialog.
Note:
This is only exploitable if the application allows downloads and programmatically destroys sessions at runtime.
Workaround
This vulnerability can be mitigated by avoiding session destruction while a download save dialog may be open and by canceling pending downloads before tearing down sessions.