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Supported languages

This document provides information about supported languages and language maturity definitions for the following products:

  • Semgrep Code
  • Semgrep OSS
  • Semgrep Supply Chain

Semgrep Code and OSSโ€‹

Semgrep OSS is a fast, lightweight program analysis tool that can help you detect bugs in your code. It makes use of Semgrep's LGPL 2.1 open source engine.

Semgrep Code is a static application security testing (SAST) solution designed to detect complex security vulnerabilities. It makes use of proprietary Semgrep analyses, such as cross-file (interfile) dataflow analysis and framework specific analysis, in addition to Semgrep OSS. This results in a higher true positive rate than Semgrep OSS.

Use either tool to scan local code or integrate it into your CI/CD pipeline to automate the continuous scanning of your repositories.

ProductAnalysis
Semgrep OSS
  • Single-function analysis
  • Single-file analysis
Semgrep Code
  • Cross-file (interfile) analysis
  • Cross-function (interprocedural) analysis
  • Framework-specific control flow analysis
  • All analyses in the OSS Engine

Semgrep Code language supportโ€‹

Semgrep Code supports over 30 languages and counting! ๐Ÿš€

LanguageMaturity levelCross-function analysisCross-file analysis
CGAโœ…โœ…
C++GAโœ…โœ…
C#GAโœ…โœ…
GoGAโœ…โœ…
JavaGAโœ…โœ…
JavaScriptGAโœ…โœ…
KotlinGAโœ…โœ…
PythonGAโœ…โœ…
TypeScriptGAโœ…โœ…
RubyGAโœ…--
RustGAโœ…--
JSXGAโœ…--
PHPGAโœ…--
ScalaGAโœ…--
SwiftGAโœ…--
GenericGA----
JSONGA----
TerraformGA----
Apex (Pro Only)Betaโœ…--
Elixir (Pro Only)Betaโœ…--

The following languages are Experimental:

  • Bash
  • Cairo
  • Clojure
  • Dart
  • Dockerfile
  • Hack
  • HTML
  • Jsonnet
  • Julia
  • Lisp
  • Lua
  • Ocaml
  • R
  • Scheme
  • Solidity
  • YAML
  • XML

If you'd like to request a language not shown here, please create an issue on the Semgrep GitHub repo.

Language maturity levelsโ€‹

Semgrep Code languages can be classified into four maturity levels:

  • Generally available (GA)
  • Beta
  • Experimental
  • Community supported*

*Community supported languages meet the parse rate and syntax requirements of Experimental languages. Users can still access community rules or write their own rules.

Their differences are outlined in the following table:

FeatureGABetaExperimentalCommunity supported
SupportHighest quality support by the Semgrep team. Reported issues are resolved promptly.Supported by the Semgrep team. Reported issues are fixed after GA languages.There are limitations to this language's functionality. Reported issues are tracked and prioritized with best effort.These languages are supported by the Semgrep community. While Semgrep may develop rules or engine updates for these languages, they are not prioritized.
Parse Rate99%+95%+90%+
Number of rules10+5+0+. Query the Registry to see if any rules exist for your language.
Semgrep syntaxRegex, equivalence, deep expression operators, types and typing. All features supported in Beta.Complete metavariable support, metavariable equality. All features supported in Experimental.Syntax, ellipsis operator, basic metavariable functionality.
tip

GA languages have broad support for all versions of that language.

Semgrep OSS language supportโ€‹

All Semgrep OSS languages are community supported. Community supported languages must meet the parse rate and syntax requirements of experimental support in Semgrep Code to be listed here. Semgrep OSS uses Semgrep's open source engine.

Community supported languages have varying levels of rule coverage - view the registry and filter out Pro rules to see the level of coverage for OSS.

Click to view Semgrep OSS languages.
  • Bash
  • C
  • C++
  • C#
  • Cairo
  • Clojure
  • Dart
  • Dockerfile
  • Generic
  • Go
  • Hack
  • HTML
  • Java
  • JavaScript
  • JSON
  • Jsonnet
  • Julia
  • Lisp
  • Lua
  • Kotlin
  • Ruby
  • Rust
  • JSX
  • OCaml
  • PHP
  • Python
  • R
  • Scala
  • Scheme
  • Solidity
  • Swift
  • TypeScript
  • YAML
  • XML

More informationโ€‹

Visit the cheat sheet generation script and associated semgrep-core test files to learn more about each feature:

Visit the Semgrep public language dashboard to see the parse rates for each language

Semgrep Supply Chainโ€‹

Semgrep Supply Chain is a software composition analysis (SCA) tool that detects security vulnerabilities in your codebase introduced by open source dependencies. It can also:

  • Generate a software bill of materials (SBOM) that provides a complete inventory of your open source components
  • Query for information about your dependencies
  • Support the enforcement of your business' open source package licensing requirements

Semgrep Supply Chain parses lockfiles for dependencies, then scans your codebase for reachable findings based on the lockfiles. Some languages, such as Java, have several supported lockfiles, depending on your repository's package manager. For a lockfile to be scanned by Semgrep Supply Chain, it must have one of the supported lockfile names.

For some languages, such as JavaScript and Python, a manifest file is also parsed to determine transitivity. For more information on transitivity, see Transitive dependencies and reachability analysis.

LanguageSupported package managersLockfileReachability support levelLicense detection supportPeriod of reachability rule coverage for CVEs/GHSAs
C#NuGetpackages.lock.jsonGAโœ…80% of all critical severity CVEs since 2017 and 100% of critical and high severity CVEs since May 2022
GoGo modules (go mod)go.modGAโœ…
JavaGradlegradle.lockfileGAโœ…
MavenMaven-generated dependency tree (See Setting up SSC scans for Apache Maven for instructions.)GAโœ…
JavaScript or TypeScriptnpm (Node.js)package-lock.jsonGAโœ…
Yarn, Yarn 2, Yarn 3yarn.lockGAโœ…
pnpmpnpm-lock.yamlGAโœ…
Pythonpiprequirements.txt if used as a lockfile. The requirements.txt file must be generated automatically and have values set to exact versions (pinned dependencies).GAโœ… (PyPI packages only)
pip-toolsrequirements.txtGA
PipenvPipfile.lockGA
Poetrypoetry.lockGA
RubyRubyGemsGemfile.lockGAโœ…
RustCargoยงcargo.lockLockfile-onlyโœ…Not applicable due to reachability support level
DartPubpubspec.lockLockfile-only--
ElixirHexmix.lockLockfile-only--
KotlinGradleยงgradle.lockfileLockfile-only--
MavenMaven-generated dependency tree (See Setting up SSC scans for Apache Maven for instructions.)Lockfile-only--
PHPComposercomposer.lockLockfile-only--
ScalaMavenMaven-generated dependency tree (See Setting up SSC scans for Apache Maven for instructions.)Lockfile-only--
SwiftSwiftPMPackage.swift file and Swift-generated Package.resolved file. (See Swift documentation for instructions.)Lockfile-only--

ยง Supply Chain does not analyze the transitivity of packages for these language and lockfile combinations. All dependencies are listed as Unknown transitivity.

Maturity levelsโ€‹

Semgrep Supply Chain has two maturity levels:

  • General Availability (GA)
  • Beta

Their differences are outlined in the following table:

FeatureGABeta
Number of reachability rules10+1+
Semgrep, Inc. rule-writing supportQuickly release new rules for all critical and high vulnerabilities based on the latest security advisories.No commitment for new rules based on the latest security advisories.
Semgrep OSS Engine language supportSemgrep OSS Engine support is GA.Semgrep OSS Engine support is at least Beta.
Feature and product maturity levels
  • The detailed specifications previously provided apply only to language support. Language maturity levels differ from feature and product maturity levels.
  • Semgrep features and products documented as experimental, beta, or GA generally follow the definitions in a Software release life cycle.

Reachability support levelโ€‹

Reachability support level refers to the level of support for reachability analysis for the language. At the minimum, Semgrep Supply Chain uses lockfile-only rules, which compare a package's version against versions with known vulnerabilities._


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