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snyk test [<OPTIONS>]


The snyk test command checks projects for open-source vulnerabilities and license issues. The test command tries to auto-detect supported manifest files with dependencies and test those.
Note: There are specific snyk test commands for the Snyk Code, Container, and IaC scanning methods: code test, container test, and iac test.

Exit codes

Possible exit codes and their meaning:
0: success (scan completed), no vulnerabilities found 1: action_needed (scan completed), vulnerabilities found 2: failure, try to re-run the command. Use -d to output the debug logs. 3: failure, no supported projects detected

Configure the Snyk CLI

You can use environment variables to configure the Snyk CLI and set variables for connecting with the Snyk API. See Configure the Snyk CLI

Code execution warning

Before scanning your code, review the Code execution warning for Snyk CLI


Use the -d option to output the debug logs.


See also subsequent sections for options for specific build environments, package managers, languages, and [<CONTEXT-SPECIFIC OPTIONS>] which you specify last.


Auto-detect all projects in the working directory, including Yarn workspaces.
Note: Gradle projects are treated as sub-projects. Therefore --exclude does not work with Gradle projects.
If you see the invalid string length error, refer to Invalid string length error when scanning projects


Use with --all-projects to cause scans to be interrupted when errors occur and to report these errors back to the user.
The exit code is 2 and the scan ends. No vulnerability information is reported for projects that did not produce errors.
To perform the scan, resolve the error and scan again.
Note: If you do not use --fail-fast, Snyk scans all the projects but does not report any vulnerabilities for projects it could not scan due to misconfiguration or another error.


Use with --all-projects or --yarn-workspaces to indicate how many subdirectories to search. DEPTH must be a number, 1 or greater; zero (0) is the current directory.
Default: 4 , the current working directory (0) and 4 subdirectories.
Example: --detection-depth=3 limits search to the specified directory (or the current directory if no <PATH> is specified) plus three levels of subdirectories; zero (0) is the current directory.


Can be used with --all-projects and --yarn-workspaces to indicate directory names and file names to exclude. Must be comma-separated, and cannot include a path.
Example: $ snyk test --all-projects --exclude=dir1,file2
This will exclude any directories and files named dir1 and file2 when scanning for project manifest files such as: ./dir1, ./src/dir1, ./file2, ./src/file2 and so on.
Note: --exclude=dir1 will find both ./dir1, and ./src/dir1. However, --exclude=./src/dir1 will result in an error because it includes a path.
Note: When --all-projects is used with Gradle, the projects are treated as sub-projects. The --exclude option is not supported for Gradle sub-projects.

--prune-repeated-subdependencies, -p

Prune dependency trees, removing duplicate sub-dependencies.
Continues to find all vulnerabilities, but may not find all of the vulnerable paths.
Use this option if any big projects fail to be tested.
Default: false
Print the dependency tree before sending it for analysis.


Set or override the remote URL for the repository that you would like to monitor.


Include development-only dependencies. Applicable only for some package managers, for example, devDependencies in npm or :development dependencies in Gemfile.
Note: This option can be used with Maven, npm, and Yarn projects.
Default: false, scan only production dependencies.


Specify the <ORG_ID> to run Snyk commands tied to a specific organization. The <ORG_ID> influences some features availability and private test limits.
If you have multiple organizations, you can set a default from the CLI using:
$ snyk config set org=<ORG_ID>
Set a default to ensure all newly tested projects are tested under your default organization. If you need to override the default, use the --org=<ORG_ID> option.
Default: <ORG_ID> that is the current preferred organization in your Account settings
Note: You can also use --org=<orgslugname>. The ORG_ID works in both the CLI and the API. The organization slug name works in the CLI, but not in the API.
For more information see the article How to select the organization to use in the CLI


Specify a package file.
When testing locally or monitoring a project, you can specify the file that Snyk should inspect for package information. When the file is not specified, Snyk tries to detect the appropriate file for your project.
See also the section on Options for Python projects


Specify the name of the package manager when the filename specified with the --file=<FILE> option is not standard. This allows Snyk to find the file.
Example: $ snyk test --file=req.txt --package-manager=pip
For more information see Options for Python projects


For C++ only, scan all files for known open source dependencies.
For options you can use with --unmanaged see Options for scanning using --unmanaged


Ignore all set policies, the current policy in the .snyk file, org level ignores, and the project policy on


Apply and use ignore rules from the Snyk policies in your dependencies; otherwise ignore rules in the dependencies are only shown as a suggestion.


Display the dependency paths from the top level dependencies down to the vulnerable packages. Not supported with --json-file-output.
Default: some (a few example paths shown). false is an alias for none
Example: --show-vulnerable-paths=none


Specify a custom Snyk project name.


Specify a reference that differentiates this project, for example, a branch name or version. Projects having the same reference can be grouped based on that reference. Supported for Snyk Open Source except for use with --unmanaged.
For more information see Group projects by branch or version
You can use --target-reference=<TARGET_REFERENCE> when running tests to apply the same ignores and policies as for a monitored target.
For more information see Ignore issues


Manually pass a path to a .snyk policy file.


Print results on the console as a JSON data structure.
Example: $ snyk test --json
If you see the invalid string length error, refer to Invalid string length error when scanning projects


Save test output as a JSON data structure directly to the specified file, regardless of whether or not you use the --json option.
Use to display the human-readable test output using stdout and at the same time save the JSON data structure output to a file.
For open-source, Snyk creates a file whether or not issues are found. In contrast, for SAST, if no issues are found, Snyk does not create a json file.
Example: $ snyk test --json-file-output=vuln.json
If you see the invalid string length error, refer to Invalid string length error when scanning projects


Return results in SARIF format.


Save test output in SARIF format directly to the <OUTPUT_FILE_PATH> file, regardless of whether or not you use the --sarif option.
This is especially useful if you want to display the human-readable test output using stdout and at the same time save the SARIF format output to a file.


Report only vulnerabilities at the specified level or higher.


Fail only when there are vulnerabilities that can be fixed. Use one of the values as follows:
  • all: Use to fail when there is at least one vulnerability that can be either upgraded or patched.
  • upgradable: Use to fail when there is at least one vulnerability that can be upgraded.
  • patchable: Use to fail when there is at least one vulnerability that can be patched. Note that when you use patchable, the test will also fail if at least one vulnerability can be patched and other vulnerabilities found can be upgraded.
To fail on any Snyk-discoverable vulnerability (the default behavior), do not use the --fail-on option. If vulnerabilities do not have a Snyk-computed fix and this option is being used, tests pass.
Note: If you test code constrained by metadata that Snyk cannot respect with snyk test, Snyk will not propose a fix, in order to avoid breaking your code. You may be able to identify and apply a fix manually.

Options for Maven projects

Note: The --dev option can be used with Maven projects. See also the --dev option help


Use --maven-aggregate-project instead of --all-projects when scanning Maven aggregate projects, that is, ones that use modules and inheritance.
When scanning these types of projects, Snyk performs a compile to ensure all modules are resolvable by the Maven reactor.
Be sure to run the scan in the same directory as the root pom.xml file.
Snyk reports test results per pom.xml file.


To test individual JAR, WAR, and AAR files, use the following:
--scan-unmanaged --file=<JAR_FILE_NAME>


Auto-detect Maven, JAR, WAR, and AAR files recursively from the current folder.
Note: Custom-built JAR files, even with open-source dependencies, are not supported.

Options for Gradle projects

Note: If you see the invalid string length error, refer to Invalid string length error when scanning projects

--sub-project=<NAME>, --gradle-sub-project=<NAME>

For Gradle "multi project" configurations, test a specific sub-project.


For "multi project" configurations, test all sub-projects.


See also the --all-projects option information in the Options section of this help.
Use for monorepos. This detects all supported manifests.
For Gradle monorepos Snyk looks only for root level build.gradle / build.gradle.kts files and applies the same logic as --all-sub-projects behind the scenes.
This option is designed to be run in the root of your monorepo.


Resolve dependencies using only configuration(s) that match the specified Java regular expression.
Example: ^releaseRuntimeClasspath$


Select certain values of configuration attributes to install and resolve dependencies.
Example: buildtype:release,usage:java-runtime


Use for projects that contain a Gradle initialization script.

Options for NuGet projects


When you are monitoring a .NET project using NuGet PackageReference uses the project name in project.assets.json if found.


Test all .NET projects included in the given .sln file. Projects referred to must have supported manifests.
Example: snyk test --file=myApp.sln


Test an individual .NET project.


Specify a custom path to the packages folder.
This is the folder in which your dependencies are installed, provided you are using packages.config. If you have assigned a unique name to this folder, then Snyk can find it only if you enter a custom path.
Use the absolute or relative path, including the name of the folder where your dependencies reside.
snyk test --packages-folder=../location/to/packages for Unix OS
snyk test --packages-folder=..\location\to\packages for Windows.


When monitoring a .NET project, use this option to add a custom prefix to the name of files inside a project along with any desired separators.
Example: snyk monitor --file=my-project.sln --project-name-prefix=my-group/
This is useful when you have multiple projects with the same name in other .sln files.

Options for npm projects

Note: You can use the following options with npm projects:
--dev. See the --dev option help
--all-projects to scan and detect npm projects and all other projects in the directory. See the --all-projects option help
--fail-on. See the --fail-on option help
--prune-repeated-subdependencies, -p. See the --prune-repeated subdependencies option help


Prevent testing out-of-sync lockfiles.
If there are out-of-sync lockfiles in the project, the test command fails when --strict-out-of-sync=true.
Default: true

Options for Yarn projects

Note: You can use the following options with Yarn projects:
--dev. See the --dev option help
--fail-on. See the --fail-on option help
--prune-repeated-subdependencies, -p. See the --prune-repeated subdependencies option help


Prevent testing out-of-sync lockfiles.
If there are out-of-sync lockfiles in the project, the test command fails when --strict-out-of-sync=true.
Default: true


Detect and scan Yarn Workspaces only when a lockfile is in the root.
You can specify how many sub-directories to search using --detection-depth.
You can exclude directories and files using --exclude.
Default: --all-projects automatically detects and scans Yarn Workspaces.with other projects.

Option for CocoaPods projects


Control testing out-of-sync lockfiles.
Default: false

Options for Python projects


Indicate which specific Python commands to use based on the Python version.
Snyk uses Python in order to scan and find your dependencies. If you are using multiple Python versions, use this parameter to specify the correct Python command for execution.
Default: python This executes your default python version. Run python -V to find out what your default version is.
Example: snyk test--command=python3


Skip packages that cannot be found in the environment, for example, private packages that cannot be accessed from the machine running the scan.

--file= for Python

For a Python project, specify a particular file to test.
Default: Snyk scans the requirements.txt file at the top level of the project.
Snyk can recognize any manifest files specified with this option based on --file=req.txt. Each (*) is a wildcard and req can appear anywhere in the file name.
For example, Snyk recognizes your manifest file when you have renamed it to requirements-dev.txt.

--package-manager= for Python

Add--package-manager=pip to your command if the file name is not requirements.txt.
This option is mandatory if you specify a value for the --file parameter that is not to a requirements.txt file. The test fails without this parameter. Specify this parameter with the value pip.
For complete information about the command see --package-manager=<PACKAGE_MANAGER_NAME>``

Options for Go projects

Currently the following options are not supported:

Options for scanning using --unmanaged

The following standard snyk test options can be used with --unmanaged as documented in this help.
There are also special options as follows.


Specify the maximum level of archive extraction.
Usage: --max-depth=1
Use 0 (zero, the default) to disable archive extraction completely.
Display dependencies.
Use this option to see what files contributed to each dependency identified.
To see how confident Snyk is about the identified dependency and its version, use the --print-deps or --print-dep-paths option.

Options for build tools


Use a double dash (--) after the complete Snyk command to pass additional options (arguments, flags) that follow directly to the build tool, for example Gradle or Maven.
The format is snyk <command> -- [<context-specific_options>]
Example: snyk test -- --build-cache
Note: Do not use double quotes in any -- [<context-specific_options>].
Example: Use snyk test --org=myorg -- -s settings.xml
NOT snyk test --org=myorg -- "-s settings.xml"

Examples for the snyk test command

Test a project in the current folder for known vulnerabilities:
$ snyk test
Test a specific dependency for vulnerabilities (npm only):
$ snyk test [email protected]
Test the latest version of an npm package:
$ snyk test lodash
Test a public GitHub repository:
$ snyk test