CVE-2026-34771
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| electron | electron | < 38.8.6 | affected |
| electron | electron | >= 39.0.0-alpha.1, < 39.8.0 | affected |
| electron | electron | >= 40.0.0-alpha.1, < 40.7.0 | affected |
| electron | electron | >= 41.0.0-alpha.1, < 41.0.0-beta.8 | affected |
Weaknesses
- CWE-416: CWE-416: Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
electron: Electron: Memory corruption or application crash via use-after-free in permission request handling
Additional References
- https://access.redhat.com/security/cve/CVE-2026-34771
- https://bugzilla.redhat.com/show_bug.cgi?id=2454995
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34771.json
References
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