GitHub Advisoryadvisory · npm

GHSA-9w97-2464-8783 Electron: Use-after-free in download save dialog callback

MEDIUM Published 2026-04-03 Modified 2026-04-06 Official page ↗
Aliases
CVE-2026-34772
Ecosystem
npm
Packages
electron
Severity
Moderate
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L
Weaknesses
CWE-416
Reviewed
2026-04-03

Affected packages

• npm electron: < 38.8.6 → fixed in 38.8.6 • npm electron: >= 39.0.0-alpha.1, < 39.8.0 → fixed in 39.8.0 • npm electron: >= 40.0.0-alpha.1, < 40.7.0 → fixed in 40.7.0 • npm electron: >= 41.0.0-alpha.1, < 41.0.0-beta.7 → fixed in 41.0.0-beta.7

Description

Impact 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. Workarounds Avoid destroying sessions while a download save dialog may be open. Cancel pending downloads before session teardown. Fixed Versions • `41.0.0-beta.7` • `40.7.0` • `39.8.0` • `38.8.6` For more information If there are any questions or comments about this advisory, please email [email protected]

Related

Alias · CVE (1)

  • CVE-2026-34772 Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. vulnerability

Weakness · CWE (1)

References