CVE-2026-34772
Medium · 5.8CVSS
5.8
EPSS
0.2%
Published
Apr 4, 2026
CISA due date
—
The record
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that allow downloads and programmatically destroy sessions may be vulnerable to a use-after-free. If a session is torn down while a native save-file dialog is open for a download, dismissing the dialog dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not destroy sessions at runtime, or that do not permit downloads, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | electron | 0 | 38.8.6 |
| npm | electron | 39.0.0-alpha.1 | 39.8.0 |
| npm | electron | 40.0.0-alpha.1 | 40.7.0 |
| npm | electron | 41.0.0-alpha.1 | 41.0.0-beta.7 |
Related vulnerabilities
- GHSA-9w97-2464-8783 Electron: Use-after-free in download save dialog callback Same vulnerability
- CVE-2026-54257 Electron is a framework for writing cross-platform desktop applications using JavaScript… Also affects electron
- GHSA-q6m5-f73j-m9mc Electron: Buffer performs incorrect byte length calculations resulting in heap buffer… Also affects electron
- CVE-2026-34781 Electron is a framework for writing cross-platform desktop applications using JavaScript… Also affects electron
- CVE-2026-34765 Electron is a framework for writing cross-platform desktop applications using JavaScript… Also affects electron
- GHSA-f37v-82c4-4x64 Electron: Crash in clipboard.readImage() on malformed clipboard image data Also affects electron
- GHSA-f3pv-wv63-48x8 Electron: Named window.open targets not scoped to the opener's browsing context Also affects electron
- CVE-2026-34764 Electron is a framework for writing cross-platform desktop applications using JavaScript… Also affects electron