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Snyk for Go

Snyk supports testing and monitoring of Go projects that have their dependencies managed by Go Modules, dep and govendor.
The following describes how to use Snyk to scan your Go projects:

Features

Some of these features may not be available for your Snyk subscription plan.
Package managers / Features
CLI support
Git support
License scanning
Fix PRs
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dep
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govendor
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How it works

Once Snyk builds the tree, the Snyk vulnerability database can be used to find vulnerabilities in any of the modules or packages, anywhere in the dependency tree.
To scan your dependencies in the CLI, you must ensure you have first installed the relevant package manager, and that your project contains the supported manifest files.
How Snyk analyzes and builds the tree varies depending on the language and package manager for the project, as well as on the location of your project.

Snyk CLI tool for Go projects

Go Modules
To build the dependency tree, Snyk uses the go list -json -deps command.
Snyk scans Go Modules projects in the CLI at the package level rather than on the module level, as we have full access to your project source code. This is beneficial since you might use a vulnerable module but not the vulnerable package.
When testing Go Modules projects via the CLI, Snyk does not require that dependencies be installed, but you must have a go.mod file at the root of your project: go list uses this and your project source code to build a complete dependency tree.
Different versions of the Go generate different results for the go list -json -deps command. This can affect the dependency tree and the vulnerabilities that the Snyk CLI finds.
Dep
To build the dependency tree, Snyk analyzes your Gopkg.lock files.
When testing dep projects via the CLI Snyk requires dependencies to be installed, run dep ensure to achieve this.
Govendor
To build the dependency tree, Snyk analyzes your vendor/vendor.json files.
When testing Govendor projects via the CLI, Snyk requires that dependencies be installed: run govendor sync to achieve this.

Git services for Go projects

Go Modules

For Go Modules projects imported via Git, dependencies are resolved at the module level rather than at the package level, because Snyk does not have full access to your project source code. This means that you may see more issues (including potential false positives) reported than for projects tested in the CLI, because Snyk reports all the vulnerabilities for each module, and not just the package(s) referenced in your source code.
To build the dependency tree Snyk, runs the go mod graph command using the go.mod files in the selected repository.
Private modules
Go Modules projects that depend on modules from private Git repositories are supported when the private repositories are in the same Git organization as the main project repository.
Snyk supports a single private Git repository for all the Go Modules projects you have.
Imports for projects with private modules from repos in other Git organizations will fail. Support for private module dependencies from other Git organizations is planned for the future.
Private modules are supported for GitHub, GitHub Enterprise, and Bitbucket Cloud. GitLab and Bitbucket Server are not currently supported.
Broker
Projects imported via the new Snyk Broker clients should work as expected.
To add support to existing clients created before Dec 30th 2020, you should add go.mod and go.sum to your accept.json file, as per the changes in this pull request.
If you're using private Go Modules (repositories) integrated via the broker, note that Snyk requires that each private module have a go.mod file defined.
Dep
To build the dependency tree, Snyk analyzes the Gopkg.lock files in the selected repository.
Govendor
To build the dependency tree, Snyk analyzes the vendor/vendor.json files in the selected repository.