Remote-ssh Connection to Cursor server failed: Cannot read properties of undefined (reading 'includes')

[excited-tiger]

Describe the Bug

Subject: Compatibility Issue with Anysphere Remote-SSH Plugin When Connecting via Jumpserver

Description:
The Microsoft Remote-SSH extension functions correctly when connecting to our remote development server through a jumpserver (bastion host) using the following command format:

ssh jumpserverUsername@systemUsername@AssetIP@jumpserverHostIP -p2222

Example (working in VS Code):

ssh sunzhenping@[email protected]@192.168.18.6 -p2222

This configuration follows Jumpserver’s nested authentication protocol (reference: https://kb.fit2cloud.com/?p=48).

However, Anysphere’s Remote-SSH plugin fails to establish connections using the same jumpserver method. Notably, direct SSH connections (e.g., ssh [email protected]) work without issues, confirming that:

1. The target server is accessible.
2. The jumpserver workflow is the root cause.

Impact:
This blocks development workflows as our company mandates jumpserver-based access for security compliance. The issue persists across repeated attempts.

Request:
Investigate Anysphere Remote-SSH’s compatibility with Jumpserver’s multi-hop SSH syntax and implement support for this enterprise authentication model.

Steps to Reproduce

ssh jumpserverUsername@systemUsername@AssetIP@jumpserverHostIP -p2222

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.3.9
VSCode Version: 1.99.3
Commit: 54c27320fab08c9f5dd5873f07fca101f7a3e070
Date: 2025-08-01T20:07:18.002Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0

Additional Information

Name: Remote - SSH
Id: anysphere.remote-ssh
Description: Open any folder on a remote machine using SSH and take advantage of Cursor’s full feature set.
Version: 1.0.23
Publisher: Anysphere

Does this stop you from using Cursor

Yes - Cursor is unusable

[excited-tiger]

Attachment: SSH Configurations and Log Details
1. SSH Configuration for Jumpserver Access:

# 18.64 - Added via template  
Host j18.64  
    HostName 192.168.18.6  
    Port 2222  
    User sunzhenping@[email protected]  

Associated Cursor log during connection failure:
error.log.txt (65.8 KB)

2. SSH Configuration for Direct Access (Without Jumpserver):

# 18.64 - Direct configuration (no jumpserver)  
Host 18.64  
    HostName 192.168.18.64  
    Port 22  
    User ky  

Associated Cursor log during successful connection:

suceees.log.txt (759.2 KB)