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...

EUVD-2026-62186

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's FolderSchemeHandlerFactory used a raw string-prefix check (filePath.StartsWith(rootFolder)) that allowed ..%2fwww2/secret.txt to escape a www root into a sibling www2 directory, exposing local files. Fixed in version 148.0.90 by appending a directory separator to the normalized root be...

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...

Directory Traversal

Overview CefSharp.Common is a the CefSharp Chromium-based browser component 'Core' and common 'Element' components, needed by both WPF and WinForms. Affected versions of this package are vulnerable to Directory Traversal in FolderSchemeHandlerFactory through the URI-to-file-path resolution in...

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...

EUVD-2020-18462

Malware in sbrugna...

EUVD-2025-10835

Malicious code in bioql PyPI...

Sandbox Escape

CefSharp is vulnerable to Sandbox Escape. The vulnerability is due to improper handling of system resource handles in Mojo under certain unspecified conditions, allows a malicious file to exploit the flaw and escape the sandbox...

CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows

Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. Chromium security severity: High https://nvd.nist.gov/vuln/detail/CVE-2025-2783...

GHSA-F87W-3J5W-V58P CefSharp affected by incorrect handle provided in unspecified circumstances in Mojo on Windows

Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. Chromium security severity: High https://nvd.nist.gov/vuln/detail/CVE-2025-2783...

Improper Isolation or Compartmentalization

Overview Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections, due to a logic error in the Mojo component. This vulnerability does not enable code...

Improper Isolation or Compartmentalization

Overview CefSharp.Wpf.HwndHost is a the CefSharp Chromium-based browser component. Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections, due to a logi...

Improper Isolation or Compartmentalization

Overview Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections, due to a logic error in the Mojo component. This vulnerability does not enable code...

Improper Isolation or Compartmentalization

Overview CefSharp.WinForms is a the CefSharp Chromium-based browser component WinForms control. Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections,...

Improper Isolation or Compartmentalization

Overview CefSharp.Wpf is a the CefSharp Chromium-based browser component WPF control. Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections, due to a...

Improper Isolation or Compartmentalization

Overview Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization that allows an attacker who can convince a user to follow a malicious link to escape sandbox protections, due to a logic error in the Mojo component. This vulnerability does not enable code...