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...