CVE-2026-48796

CefSharp provides .NET bindings for the Chromium Embedded Framework for Windows Forms and Windows Presentation Foundation applications. Prior to version 148.0.90, CefSharp/SchemeHandler/FolderSchemeHandlerFactory.cs used filePath.StartsWithrootFolder, StringComparison.OrdinalIgnoreCase to decide...

CVE-2026-48796

CefSharp provides .NET bindings for the Chromium Embedded Framework for Windows Forms and Windows Presentation Foundation applications. Prior to version 148.0.90, CefSharp/SchemeHandler/FolderSchemeHandlerFactory.cs used filePath.StartsWithrootFolder, StringComparison.OrdinalIgnoreCase to decide...

CVE-2026-48796 CefSharp: `FolderSchemeHandlerFactory` path boundary check can expose files outside the configured root folder

CefSharp provides .NET bindings for the Chromium Embedded Framework for Windows Forms and Windows Presentation Foundation applications. Prior to version 148.0.90, CefSharp/SchemeHandler/FolderSchemeHandlerFactory.cs used filePath.StartsWithrootFolder, StringComparison.OrdinalIgnoreCase to decide...

CVE-2026-48796 CefSharp: `FolderSchemeHandlerFactory` path boundary check can expose files outside the configured root folder

CefSharp provides .NET bindings for the Chromium Embedded Framework for Windows Forms and Windows Presentation Foundation applications. Prior to version 148.0.90, CefSharp/SchemeHandler/FolderSchemeHandlerFactory.cs used filePath.StartsWithrootFolder, StringComparison.OrdinalIgnoreCase to decide...

GHSA-85JM-CWP2-MVPV CefSharp.Common: `FolderSchemeHandlerFactory` path boundary check can expose files outside the configured root folder

Summary FolderSchemeHandlerFactory was intended to restrict served files to a configured rootFolder, but its path validation used a raw string prefix check. A request could escape to a sibling directory whose full path starts with the root folder path, allowing files outside the configured root t...