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5.8
Electron: Download Dialog Crashes Apps When Closing a Session
GHSA-9w97-2464-8783
CVE-2026-34772
Summary
If you use Electron to create apps that allow users to download files, be aware that closing a session while a download dialog is open can crash your app. To fix this, avoid closing a session while a download is in progress or cancel the download before closing the session. Update to at least Electron version 38.8.6, 40.7.0, 39.8.0, or 41.0.0-beta.7 to be safe.
What to do
- Update electron to version 38.8.6.
- Update electron to version 39.8.0.
- Update electron to version 40.7.0.
- Update electron to version 41.0.0-beta.7.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| – | electron | <= 38.8.6 | 38.8.6 |
| – | electron | > 39.0.0-alpha.1 , <= 39.8.0 | 39.8.0 |
| – | electron | > 40.0.0-alpha.1 , <= 40.7.0 | 40.7.0 |
| – | electron | > 41.0.0-alpha.1 , <= 41.0.0-beta.7 | 41.0.0-beta.7 |
Original title
Electron: Use-after-free in download save dialog callback
Original 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]](mailto:[email protected])
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]](mailto:[email protected])
ghsa CVSS3.1
5.8
Vulnerability type
CWE-416
Use After Free
Published: 3 Apr 2026 · Updated: 3 Apr 2026 · First seen: 3 Apr 2026