CVE-2026-34772

Описание

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 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. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.

A flaw was found in Electron, a framework used for developing cross-platform desktop applications. This vulnerability, known as a use-after-free, affects applications that manage downloads and actively terminate user sessions. It occurs when a user dismisses a file save dialog while the application is simultaneously closing the associated session, causing the application to access memory that has already been released. This can lead to an application crash or, in more severe cases, memory corruption. Apps that do not destroy sessions at runtime, or that do not permit downloads, are not affected.