CVE-2026-34771
CVE-2026-34771 · Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permission callbacks
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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.
CVSS 7.5 · Élevée · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
electron
- Versions du logiciel
- < 38.8.6: Concernée
- >= 39.0.0-alpha.1, < 39.8.0: Concernée
- >= 40.0.0-alpha.1, < 40.7.0: Concernée
- >= 41.0.0-alpha.1, < 41.0.0-beta.8: Concernée
Aucun correctif publié
electron npm
- Plages de versions concernées
- SEMVER: < 38.8.6
Mettez à jour vers 38.8.6
electron npm
- Plages de versions concernées
- SEMVER: ≥ 39.0.0-alpha.1, < 39.8.0
Mettez à jour vers 39.8.0
electron npm
- Plages de versions concernées
- SEMVER: ≥ 40.0.0-alpha.1, < 40.7.0
Mettez à jour vers 40.7.0
electron npm
- Plages de versions concernées
- SEMVER: ≥ 41.0.0-alpha.1, < 41.0.0-beta.8
Mettez à jour vers 41.0.0-beta.8
Sources originales
- https://github.com/electron/electron/security/advisories/GHSA-8337-3p73-46f4
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-34771