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      <title>CVE-2026-34771 — Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permission callbacks</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-34771</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; electron, Red Hat Build of Podman Desktop, Red Hat Build of Podman Desktop - Tech Preview&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; electron, Red Hat Build of Podman Desktop, Red Hat Build of Podman Desktop - Tech Preview&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</content:encoded>
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