Command Injection

Overview SSH.NET is a Secure Shell SSH library for .NET, optimized for parallelism and with broad framework support. Affected versions of this package are vulnerable to Command Injection through the default remote-path handling in ScpClient constructors and initialization in...

EUVD-2026-80878

SSH.NET: ScpClient allows server-side RCE via default SCP path handling...

SSH.NET: ScpClient allows server-side RCE via default SCP path handling

Summary Default SCP remote-path handling places caller-supplied paths into the command that runs scp on the server. On a shell-based server that command is interpreted by a shell, so an attacker-influenced path that is not quoted to suit that shell can execute as a command as the authenticated SS...

GHSA-MGGC-4XG6-VCXF SSH.NET: ScpClient allows server-side RCE via default SCP path handling

Summary Default SCP remote-path handling places caller-supplied paths into the command that runs scp on the server. On a shell-based server that command is interpreted by a shell, so an attacker-influenced path that is not quoted to suit that shell can execute as a command as the authenticated SS...

CVE-2026-85756

SSH.NET is a Secure Shell SSH library for .NET. Prior to 2026.0.0, ScpClient places caller-supplied remote paths into the command used to run scp on the server, and the default RemotePathTransformation.DoubleQuote transformation cannot safely quote every remote command interpreter. When an...

CVE-2026-85756

SSH.NET is a Secure Shell (SSH) library for .NET. Prior to 2026.0.0 , the ScpClient component places caller-supplied remote paths into the command used to run scp on the server. The default RemotePathTransformation.DoubleQuote transformation cannot safely quote every remote command interpreter, s...

CVE-2026-85756 SSH.NET: ScpClient allows server-side RCE via default SCP path handling

SSH.NET is a Secure Shell SSH library for .NET. Prior to 2026.0.0, ScpClient places caller-supplied remote paths into the command used to run scp on the server, and the default RemotePathTransformation.DoubleQuote transformation cannot safely quote every remote command interpreter. When an...

CVE-2026-85756 SSH.NET: ScpClient allows server-side RCE via default SCP path handling

SSH.NET is a Secure Shell SSH library for .NET. Prior to 2026.0.0, ScpClient places caller-supplied remote paths into the command used to run scp on the server, and the default RemotePathTransformation.DoubleQuote transformation cannot safely quote every remote command interpreter. When an...

CVE-2026-48798

SSH.NET is a Secure Shell SSH library for .NET. In 2025.1.0 and earlier, ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo trusts file and directory names returned by a remote SCP server and combines them with the requested local directory without containment validation, allowin...

CVE-2026-48798 SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

SSH.NET is a Secure Shell SSH library for .NET. In 2025.1.0 and earlier, ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo trusts file and directory names returned by a remote SCP server and combines them with the requested local directory without containment validation, allowin...

CVE-2026-48798

SSH.NET (a .NET SSH library) is vulnerable to arbitrary file write via its ScpClient.Download(string, DirectoryInfo) method. The method trusts file and directory names returned by a remote SCP server during recursive downloads without containment validation. A malicious, compromised, or man-in-th...

CVE-2026-48798 SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

SSH.NET is a Secure Shell SSH library for .NET. In 2025.1.0 and earlier, ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo trusts file and directory names returned by a remote SCP server and combines them with the requested local directory without containment validation, allowin...

CVE-2026-48798 SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

SSH.NET is a Secure Shell SSH library for .NET. In 2025.1.0 and earlier, ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo trusts file and directory names returned by a remote SCP server and combines them with the requested local directory without containment validation, allowin...

CVE-2026-48798

SSH.NET is a Secure Shell SSH library for .NET. In 2025.1.0 and earlier, ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo trusts file and directory names returned by a remote SCP server and combines them with the requested local directory without containment validation, allowin...

GHSA-Q939-RPR3-3284 SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

Summary ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo writes files and directories using names returned by the remote SCP server during recursive downloads, with no validation that the resulting path stays inside the requested local directory. A malicious, compromised, or...

SSH.NET: ScpClient Recursive Download Allows Arbitrary File Write via Server-Controlled SCP Filenames

Summary ScpClient.Downloadstring directoryName, DirectoryInfo directoryInfo writes files and directories using names returned by the remote SCP server during recursive downloads, with no validation that the resulting path stays inside the requested local directory. A malicious, compromised, or...