GitHub Advisoryadvisory · npm
GHSA-9w97-2464-8783 Electron: Use-after-free in download save dialog callback
MEDIUM
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)
- CWE-416 Use After Free weakness