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Laravel Security Guard

Detailed Japanese reference

Laravel Security Guard adds an application-level layer of protection to Laravel applications. It detects known attack paths, can persistently block abusive IP addresses, and provides opt-in rate limits, administrator IP allowlists, one-time submission tokens, and safe security notifications.

It is not a replacement for a WAF, CDN, web-server hardening, or secure application code. Use it as one layer in a defence-in-depth design.

Requirements

• PHP ^8.2
• Laravel 12.61.1+ or 13.12.0+
• A database connection for the package tables
• A shared, atomic cache store when the application runs in more than one process or server

Support policy

Only Laravel majors that are within Laravel's security-fix window are supported.

Install

Migrations are loaded by the package. Publish them only when your application needs to own the migration files:

Installing the package does not change request handling. Public request protection is only active after you deliberately register its middleware.

Safe first deployment

Apply the package in staging before production, and enable one capability at a time.

1. Give the package its own cache namespace

In config/security-guard.php, replace the default security-guard prefix with a value unique to the application and environment:

This prevents separate applications or environments sharing a cache server from sharing block state, notification quotas, or one-time tokens.

2. Resolve the real client IP safely

The default laravel_request driver uses Laravel's Request::ip(). If a reverse proxy, CDN, or load balancer is in front of PHP, configure Laravel's trusted proxies before enabling the public middleware. Trust only the known proxy address or CIDR; do not trust arbitrary forwarding headers.

If PHP receives connections directly from clients, use REMOTE_ADDR instead:

Verify the resolved address with a real staging request. security-guard:status <ip> reports the guard state of the IP you supply; it does not show the client IP resolved from an HTTP request.

3. Run the configuration doctor

Fix every warning before continuing. In strict mode the command exits with 2 for warnings and 1 for failures, making it suitable for CI and deployment checks.

4. Register public request protection

Known attack-path detection and persistent blocking need to run before Laravel routes a request, including requests for routes that do not exist. Register the middleware globally in bootstrap/app.php:

Before production, add monitoring, office, and maintenance addresses to permanent_block.ignored_ips where appropriate, then test blocking, release, and re-blocking in staging.

Capabilities

Every module has its own enablement and exclusion rules. Do not enable rate limits, allowlists, notifications, or crawler handling until their dependencies and failure behaviour have been reviewed.

CIDR safety

Ignored-IP and administrator allowlist rules accept individual IP addresses and CIDR networks. An IPv4 rule does not cross IP families: it never matches an IPv4-mapped IPv6 address. An invalid or unparseable rule matches nothing, never every address.

Common commands

Run php artisan list security-guard to see all package commands, including administrator IP allowlist and verified-crawler range maintenance commands.

Documentation

This README intentionally covers the safe first deployment. The full configuration and operations reference is being prepared for the documentation site.

Until then, the published configuration file, config/security-guard.php, is the source of truth for defaults. The current detailed reference is available in Japanese: configuration and operations reference.

Support and security

• Report reproducible bugs and feature requests through GitHub Issues.
• Read CONTRIBUTING.md before submitting a pull request.
• Do not report vulnerabilities in a public issue. Follow SECURITY.md instead.
• See CHANGELOG.md before upgrading.

Development

License

Laravel Security Guard is open-sourced software licensed under the MIT license.