CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-34771
High (8.8) in electronjs electron. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in electron 38.8.6, 39.8.0, 40.7.0.
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 register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, 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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-416, CWE-364
- Published
- Modified
- Record from
- the NVD, synced
Affected
- electronjs:electron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8337-3p73-46f4 | npm | electron | <38.8.6 | 38.8.6 |
| GHSA-8337-3p73-46f4 | npm | electron | >=39.0.0-alpha.1 <39.8.0 | 39.8.0 |
| GHSA-8337-3p73-46f4 | npm | electron | >=40.0.0-alpha.1 <40.7.0 | 40.7.0 |
| GHSA-8337-3p73-46f4 | npm | electron | >=41.0.0-alpha.1 <41.0.0-beta.8 | 41.0.0-beta.8 |