As a Laravel developer, you probably install dozens of packages via Composer. But how often do you check if those packages contain security vulnerabilities? Understanding php composer laravel package security is one of the most overlooked aspects of modern PHP development.

That’s where Composer Audit comes in. Starting from Composer 2.4+, you can automatically run a composer security check on your project dependencies for known security issues using the built-in command:

composer audit

In this guide, we’ll cover everything you need to know about composer audit laravel — from understanding what it is to automating it in your CI/CD pipeline.

What is Composer Audit?

Composer Audit is a built-in php security check command that scans your composer.lock file against public security advisory databases. It performs a full composer vulnerability check and tells you:

• Vulnerable package name
• Severity (low / medium / high / critical)
• CVE ID and advisory link
• Affected versions

Think of it as a php Security Scanner for your dependencies — it helps prevent deploying insecure packages to production. Important: It checks dependencies only — not your application code.

How Composer Audit Works in a Laravel Project

Laravel relies heavily on third-party packages. When you install packages via Composer, they are locked into specific versions in composer.lock. The composer security audit compares those locked versions against public advisory databases and reports known vulnerabilities.

Common packages that may trigger a composer check vulnerabilities warning include:

• Laravel core packages and Symfony components
• firebase/php-jwt for JWT handling — a common composer audit tcpdf CVE-2024-56522 equivalent for JWT
• laravel/socialite for OAuth authentication
• tcpdf and other PDF/rendering libraries

 How to Run Composer Audit in Laravel

Navigate to your Laravel project root and run the composer security checker:

composer audit

Example Output

If a vulnerability is found, the composer check laravel version output will look like this:

Found 1 security vulnerability advisory affecting 1 package:

+-------------------+-------------------------------------+
| Package           | firebase/php-jwt                    |
| Severity          | high                                |
| CVE               | CVE-2025-45769                      |
| Title             | php-jwt contains weak encryption    |
+-------------------+-------------------------------------+

This is your composer security audit report — it means one of your installed packages has a known vulnerability and must be addressed immediately.

What Does Composer Audit Actually Check?

The composer audit laravel command checks the following:

• Your composer.lock file and installed package versions
• Public security advisory databases (including Packagist advisories)
• CVE records and published vulnerability disclosures

It does NOT scan your source code, detect logical bugs, or detect misconfigurations. It strictly performs a composer vulnerability check on dependency versions.

How to Fix Composer Audit Vulnerabilities (Proper Way)

Knowing how to fix composer audit vulnerabilities is essential for every Laravel developer. Here is the step-by-step process:

Step 1: Check the Current Version

composer show firebase/php-jwt

Step 2: Update the Package

Update only the vulnerable package:

composer update firebase/php-jwt

Or update everything safely (this also helps when you need to know how to update composer in Laravel):

composer update

Step 3: Re-run the Composer Security Check

composer audit

If the fix was successful, you’ll see:

No security vulnerability advisories found.

If the package is not directly in your composer.json but is a transitive dependency, read the next section on how to trace and update it properly.

⚠️ Do NOT Ignore Vulnerabilities

You may see developers bypassing the composer security audit using flags like:

composer audit --no-dev

Or worse, manually ignoring advisories. This is NOT recommended in production projects. If severity is high or critical, update immediately. Security debt grows silently and can lead to full system compromise.

Advanced: Tracing Why a Package Is Installed

Sometimes the vulnerable package found during your composer check vulnerabilities run is not directly listed in your composer.json. Use the why command to trace the dependency tree:

composer why firebase/php-jwt

Example output:

laravel/socialite requires firebase/php-jwt

Now you may need to update the parent package:

composer update laravel/socialite

This ensures a compatible and safe dependency upgrade. This approach is also useful when dealing with composer but the package is fixed to a specific version — understanding the dependency chain lets you resolve conflicts properly.

Composer Audit vs Local-PHP-Security-Checker

When comparing composer audit vs local-php-security-checker, both tools serve similar purposes but with key differences:

• composer audit is built into Composer 2.4+ — no extra installation needed. It’s the recommended composer security check for modern Laravel projects.
• local-php-security-checker is a standalone tool from SensioLabs. It was widely used before composer audit became native and uses the same Packagist advisory database.
• For most Laravel projects today, composer audit is sufficient and preferred since it requires no additional setup.
• local-php-security-checker may still be useful in legacy environments running older Composer versions.

If you’re deciding between the two for a composer security audit workflow, start with the native solution unless you have specific constraints.

How to Automate Composer Audit in GitHub Actions

One of the best practices for modern Laravel development is to automate composer audit GitHub Actions as part of your CI/CD pipeline. Here is an example workflow:

name: Laravel Security Check
on: [push, pull_request]
jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Install Composer Dependencies
        run: composer install --no-dev --prefer-dist
      - name: Composer Security Audit
        run: composer audit

With this automate composer audit GitHub Actions setup:

• Deployments automatically fail when vulnerabilities are found
• The development team gets notified via GitHub’s built-in alerting
• Insecure code never reaches production

This is highly recommended for all production Laravel applications and is an essential part of your Laravel security check command toolkit.

How to Update Laravel Version Using Composer

Knowing how to update Laravel version using composer is an important related skill. Keeping your Laravel version current reduces exposure to known framework-level vulnerabilities:

composer require laravel/framework:^11.0

Or for a patch update:

composer update laravel/framework

After any update, always re-run your composer check laravel version and audit:

composer audit

Fixing composer dump-autoload Errors in Laravel

Sometimes after running updates, you may encounter a composer dump autoload error in Laravel. This can happen when class maps become stale or PSR-4 paths are incorrect. To fix:

composer dump-autoload --optimize

If the error persists:

composer install --no-scripts
composer dump-autoload

These errors are often unrelated to security but can occur during the update process when fixing vulnerabilities.

What is composer.json in Laravel?

Understanding what is composer.json in Laravel is foundational to understanding dependency security. The composer.json file is the project’s dependency manifest — it lists all required packages and their version constraints. The composer.lock file pins exact installed versions.

When you run composer audit, it reads composer.lock (not composer.json) to check the exact versions currently installed in your project. This is why committing composer.lock to version control is critical for security auditing.

Best Practices for Composer Security in Laravel Projects

• Always commit composer.lock to version control
• Run composer audit before every deployment
• Update dependencies regularly — especially after composer php security October 2025 advisories
• Avoid abandoned packages — they will never receive security patches
• Monitor security advisories monthly
• Use Dependabot or similar automated tools
• Automate composer audit GitHub Actions in your CI/CD pipeline
• Know how to update composer in Laravel to stay on supported versions

🎯 Real-World Scenario: JWT Vulnerability

Imagine your Laravel API uses JWT authentication via firebase/php-jwt. If it contains a weak encryption vulnerability (as seen in CVE-2025-45769), the consequences are severe. A proper composer security audit would have caught this before deployment.

Running the laravel security check command early in your development lifecycle means you can patch vulnerabilities before they become production incidents.

Conclusion

If you’re building serious applications with Laravel, making composer audit laravel part of your regular workflow is non-negotiable. Whether you’re doing a quick composer check laravel version, tracing dependencies with composer why, or automating your pipeline with automate composer audit GitHub Actions — security at the dependency level protects your entire application.

Run this today:

composer audit

If it shows vulnerabilities — Update, Test, and Deploy safely. And now that you know how to fix composer audit vulnerabilities, there’s no reason to leave your Laravel project exposed.