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Visual Studio Code takes security seriously and wants to help you safely browse and edit code no matter the source or original authors. The Workspace Trust feature lets you decide whether code in your project folder can be executed by VS Code and extensions without your explicit approval. Show
Safe code browsingIt's great that there is so much source code available on public repositories and file shares. No matter the coding task or problem, there is probably already a good solution available somewhere. It is also great that there are so many powerful coding tools available to help you understand, debug, and optimize your code. However, using open-source code and tools does have risks, and you can leave yourself open to malicious code execution and exploits. Workspace Trust provides an extra layer of security when working with unfamiliar code, by preventing automatic code execution of any code in your workspace if the workspace is open in "Restricted Mode".
Restricted ModeWhen prompted by the Workspace Trust dialog, if you choose No, I don't trust the authors, VS Code will go into Restricted Mode to prevent code execution. The workbench will display a banner at the top with links to Manage your folder via the Workspace Trust editor, and Learn More about Workspace Trust (which takes you to back to this documentation). You will also see a Restricted Mode badge in the Status bar. Restricted Mode tries to prevent automatic code execution by disabling or limiting the operation of several VS Code features: tasks, debugging, workspace settings, and extensions. To see the full list of features disabled in Restricted Mode, you can open the Workspace Trust editor via the Manage link in the banner, or by clicking the Restricted Mode badge in the Status bar.
TasksTasks can run scripts and tool binaries, and because task definitions are defined in the workspace If you try to run or even enumerate tasks (Terminal > Run Task...) while in Restricted Mode, VS Code will display a prompt to trust the folder and continue executing the task. Cancelling the dialog leaves VS Code in Restricted Mode. DebuggingSimilar to running a VS Code task, debug extensions can run debugger binaries when launching a debug session. For that reason, debugging is also disabled when a folder is open in Restricted Mode. If you try to start a debug session (Run > Start Debugging) while in Restricted Mode, VS Code will display a prompt to trust the folder and continue launching the debugger. Cancelling the dialog leaves VS Code in Restricted Mode, and does not start the debug session. Workspace settingsWorkspace settings are stored in the In the Workspace Trust editor, there is a link to
display the workspace settings that aren't being applied. Clicking the link brings up the Settings editor scoped by the ExtensionsThe VS Code extensions ecosystem is incredibly rich and diverse. People have created extensions to help with just about any programming task or editor customization. Some extensions provide full programming language support (IntelliSense, debugging, code analysis), and others let you play music or have virtual pets. Most extensions run code on your behalf and could potentially do harm. Some extensions have settings that could cause them to act maliciously if configured to run an unexpected executable. For this reason, extensions that have not explicitly opted into Workspace Trust are disabled by default in Restricted Mode. You can review an installed extension's status by clicking the extensions are disabled or have limited functionality link in the Workspace Trust editor, which displays the Extensions view scoped with the Disabled in Restricted Mode Extensions that have either not explicitly indicated that they support running in Restricted Mode are shown in the Disabled in Restricted Mode section. An extension author can also indicate that they never want to be enabled in Restricted Mode if they determine that their extension could be misused by modifications (settings or files) in a workspace. Limited in Restricted Mode Extension authors can also evaluate their extensions for possible security vulnerabilities and declare that they have limited support when running in Restricted Mode. This mode means the extension may disable some features or functionality to prevent a possible exploit. Extensions can add custom text to the Extensions view Workspace Trust badge explaining the limitation when running in an untrusted folder. For example, the VS Code built-in PHP extension limits the use of the You
can override an extension's Workspace Trust support level using the If you try to install an extension in Restricted Mode, you will be prompted to either trust the workspace or just install the extension. If the extension doesn't support Workspace Trust, it will be installed, but be disabled or running with limited functionality.
Trusting a workspaceIf you trust the authors and maintainers of a project, you can trust the project's folder on your local machine. For example, it is usually safe to trust repositories from well-known GitHub organizations such as github.com/microsoft or github.com/docker. The initial Workspace Trust prompt when you open a new folder allows you to trust that folder and its subfolders. You can also bring up the Workspace Editor and quickly toggle a folder's trusted state. There are several ways to bring up the Workspace Editor dialog. When in Restricted Mode:
You can also at any time use:
Selecting foldersWhen you trust a folder, it is added to the Trusted Folders & Workspaces list displayed in the Workspace Trust editor. You can manually add, edit, and remove folders from this list and the active folder enabling trust is highlighted in bold. Selecting a parent folderWhen you trust a folder via the Workspace Trust editor, you have the option to trust the parent folder. This will apply trust to the parent folder and all subfolders. This can be helpful if you have many folders with trusted content co-located under one folder. When opening a subfolder under a trusted parent, you won't see the usual Don't Trust button to put you back in Restricted Mode, instead there is text mentioning that your folder is trusted due to another folder. You can add, modify, and remove a parent folder entry from the Trusted Folders & Workspaces list. Folder configurationsAs mentioned above, you can trust a parent folder and all subfolders will be trusted. This allows you to control Workspace Trust via a repository's location on disk. For example, you could put all trusted repos under a "TrustedRepos" parent folder, and unfamiliar repos under another parent folder such as "ForEvaluation". You would trust the "TrustedRepos" folder, and selectively trust folders under "ForEvaluation".
You also group and set trust on your repositories by grouping them under organization-base parent folders.
Enabling extensionsWhat happens if you want to use Restricted Mode but your favorite extension doesn't support
Workspace Trust? This can happen if an extension, while useful and functional, isn't being actively maintained and hasn't declared their Workspace Trust support. To handle this scenario, you can override the extension's trust state with the
If you open the Settings editor (⌘, (Windows, Linux Ctrl+,)) and search for "trust extensions", you can find the Extensions: Support Untrusted Workspaces setting, which has an Edit in settings.json link. Select that link and you will go to your user Below you can see a
You can either enable or disable Workspace Trust support with the If you'd like to learn more about how extension authors evaluate and determine which features to limit in Restricted Mode, you can read the Workspace Trust Extension Guide. Opening untrusted filesIf you open a file that is located outside of a trusted folder, VS Code will detect that the file comes from somewhere outside the folder root and prompt you with the option to continue to open the file or open the file in a new window in Restricted Mode. Opening in Restricted Mode is the safest option and you can always reopen the file in your original VS Code window once you determine the file is trustworthy. If you would prefer to not be prompted when opening files from outside trusted workspaces, you can set Opening untrusted foldersWhen working with multi-root workspaces with multiple folders, if you try to add a new folder to a trusted multi-root workspace, you will be prompted to decide if you trust the files in that folder or if not, the entire workspace will switch to Restricted Mode. Empty windows (no open folder)By default, if you open a new VS Code window (instance) without opening a folder or workspace, VS Code runs the window with full trust. All installed extensions are enabled and you can use the empty window without restrictions. When you open a file, you will be prompted whether you want to open an untrusted file since there is no folder to parent it. You can switch an empty window to Restricted Mode using the Workspace Trust editor (select Manage Workspace Trust from the Manage gear button or the Command Palette) and selecting Don't Trust. The empty window will remain in Restricted Mode for your current session but will go back to trusted if you restart or create a new window. If you want all empty windows to be in Restricted Mode, you can set SettingsBelow are the available Workspace Trust settings:
Command-line switchYou can disable Workspace Trust via the VS Code command line by passing Next stepsLearn more at:
Common questionsCan I still edit my source code in Restricted Mode?Yes, you can still browse and edit source code in Restricted Mode. Some language features may be disabled, but text editing is always supported. Where did my installed extensions go?In Restricted Mode, any extension that doesn't support Workspace Trust will be disabled, and all UI elements such as Activity bar icons and commands will not be displayed. You can override an extension's Workspace Trust support level with the Can I disable the Workspace Trust feature?You can but it is not recommended. If you don't want VS Code to check for Workspace Trust when opening a new folder or repository, you can set How do I untrust a folder/workspace?Bring up Workspace Trust editor (Workspaces: Manage Workspace Trust from the Command Palette) and select the Don't Trust button. You can also remove the folder from the Trusted Folders & Workspaces list. Why don't I see the "Don't Trust" button?If you don't see the Don't Trust button in the Workspace Trust dialog, the folder's trust level may be inherited from a parent folder. Review the Trusted Folders & Workspaces list to check if a parent folder has enabled Workspace Trust. Some workflows such as connecting to a GitHub Codespace or attaching to a running Docker container are automatically trusted since these are managed environments to which you should already have a high level of trust. What does Workspace Trust protect against?Many features of VS Code allow third-party tools and extensions to run automatically, such as linting or format on save, or when you do certain operations like compiling code or debugging. An unethical person could craft an innocent looking project that would run malicious code without your knowledge and harm your local machine. Workspace Trust provides an extra layer of security by trying to prevent code execution while you are evaluating the safety and integrity of unfamiliar source code. 9/1/2022 |