Stop supply chain attacks before they reach your pipeline

Detect pull_request_target abuse, cache poisoning, and token exfiltration in real time—without leaving GitHub.

The threat is real. Your detection isn't.

Attackers chain GitHub Actions misconfigurations—pull_request_target workflows, poisoned caches, stolen runner tokens—into coordinated supply chain compromises. Most teams see the damage in logs, not alerts.

ActionShield is purpose-built to catch these patterns before they execute.

How it works

Workflow linting & policy enforcement

Enforce least-privilege GitHub Actions patterns across all repositories. Block unsafe pull_request_target configurations, restrict external action sources, and validate cache scoping before workflows run.

Real-time threat detection

Monitor for suspicious action executions: token extraction attempts, unexpected cache writes, and runtime privilege escalation. Get alerts the moment anomalies appear.

Cache integrity validation

Detect poisoned caches before they corrupt your builds. Validate cache keys, ownership, and mutation patterns across all workflows.

Branch protection integration

Integrate with GitHub branch protection rules to block unsafe workflows at merge time. No manual reviews. No exceptions.

Pre-commit hooks & local linting

Catch misconfigurations before they land in your repository. Lint workflows locally or in CI—same rules, same enforcement.

Audit logs & compliance

Track every policy decision, alert, and workflow execution. Build audit trails for compliance and incident response.

Built for GitHub. Built for scale.

ActionShield installs as a GitHub App. No external SaaS. No API key sprawl. Works with GitHub Cloud and GitHub Enterprise.

Start with basic policy enforcement free. Upgrade to advanced threat detection and audit logs as you scale.

Who uses ActionShield

DevOps teams managing thousands of workflows across repositories
Open-source maintainers defending against community supply chain attacks
Security teams enforcing GitHub Actions guardrails across the organization

FAQ

Does ActionShield require external infrastructure?

No. ActionShield runs as a GitHub App and integrates directly with your GitHub instance. No external SaaS required. Enterprise deployments can run on GitHub Enterprise.

What if we use third-party actions?

ActionShield lets you define allowlists of trusted action sources and versions. You control which external actions are permitted; we enforce it across all workflows.

How does this work with existing branch protection rules?

ActionShield integrates as a required status check on pull requests. Unsafe workflows fail the check and block merge—just like any other protection rule.

Can we use ActionShield on-premises?

Yes. Enterprise customers can deploy ActionShield on GitHub Enterprise. Contact us to discuss licensing.

What's included in the free tier?

Basic workflow linting, policy enforcement, and pre-commit hooks. Paid tiers unlock advanced threat detection, real-time alerts, and audit logs.