KubeLinter

Overview

KubeLinter is ranked #12 of 24 in infrastructure policy as code tools on Specifiction. It runs on Linux, macOS, Self-hosted. There is a free plan.

Compared on infrastructure policy as code tools

Free plan

Yesdocs.kubelinter.io

Policy language

YAML configuration; CEL expressionsdocs.kubelinter.io

IaC formats

Kubernetes YAML, Helm, Kustomizedocs.kubelinter.io

Policy testing

Yesdocs.kubelinter.io

CI/CD integration

Yesdocs.kubelinter.io

Policy reporting

Yesdocs.kubelinter.io

Facts

What it does

KubeLinter statically analyzes Kubernetes YAML, Helm charts, and Kustomize manifests for best practices, production readiness, and security.github.com · 5 Oct 2026

Default checks

Its default checks cover issues such as running containers as non-root, enforcing least privilege, and storing sensitive information only in secrets.github.com · 5 Oct 2026

Custom policies

Users can enable or disable checks and create custom checks to match organizational policies.github.com · 5 Oct 2026

Findings

When a lint check fails, KubeLinter reports remediation recommendations and returns a non-zero exit code.github.com · 5 Oct 2026

Input types

KubeLinter can lint Kubernetes YAML files, Helm chart directories, and Kustomize directories.github.com · 5 Oct 2026

Report formats

It supports plain text, JSON, and SARIF output, including writing multiple formats in one run.github.com · 5 Oct 2026

Integrations

The project documents use with pre-commit hooks, a Docker-based pre-commit hook, and a GitHub Action for CI.github.com · 5 Oct 2026

Installation

The project documents installation using Go, release binaries, Homebrew or LinuxBrew, nix-shell, and Docker.github.com · 5 Oct 2026

Image verification

KubeLinter container images are signed with cosign, and the project provides a public key for verification.github.com · 5 Oct 2026

Security reporting

The security policy directs people reporting vulnerabilities to Red Hat's Product Security team for confidential disclosure.github.com · 5 Oct 2026

License

KubeLinter is licensed under the Apache License 2.0.github.com · 5 Oct 2026

Support and community

The project points users to its Slack workspace to engage with maintainers and other users.github.com · 5 Oct 2026

Notable limitation

The project notes that command usage, flags, and configuration file formats may change in the future.github.com · 5 Oct 2026

Maker

The repository says KubeLinter was created by StackRox and is now powered by Red Hat.github.com · 5 Oct 2026

Where it ranks on Specifiction

• Best Infrastructure Policy as Code Tools in 2026#12 of 24

Sources

• github.com/stackrox/kube-linter· checked 5 Oct 2026
• github.com/stackrox/kube-linter/blob/main/docs/usi· checked 5 Oct 2026
• github.com/stackrox/kube-linter/blob/main/SECURITY· checked 5 Oct 2026