CyberRota Analysis
AI-GeneratedThe SSH.NET library for .NET is vulnerable due to improper handling of user-supplied remote paths in the ScpClient, which can lead to command injection on shell-based servers. Attackers can exploit this vulnerability by crafting specific paths that leverage shell metacharacters, potentially allowing them to execute arbitrary commands as the authenticated SSH user. Organizations using affected versions of SSH.NET should prioritize upgrading to version 2026.0.0 to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
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 application passes an attacker-controlled path to a shell-based server, shell metacharacters not neutralized by the active IRemotePathTransformation can execute commands as the authenticated SSH user. Exploitation requires a shell-based server and a path crafted for that shell's parsing rules; non-shell servers and paths fully neutralized by the selected transformation are not affected. RemotePathTransformation.ShellQuote is available for POSIX shells, while SftpClient avoids a remote shell entirely. This issue is fixed in version 2026.0.0.