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[Security](/categories/security) 4. / 5. symfony/security-core ActiveLibrary[Security](/categories/security) symfony/security-core ===================== Symfony Security Component - Core Library v8.0.4(3mo ago)1.9k199.7M—6.3%3120MITPHPPHP >=8.4 Since Oct 7Pushed 1mo ago8 watchersCompare [ Source](https://github.com/symfony/security-core)[ Packagist](https://packagist.org/packages/symfony/security-core)[ Docs](https://symfony.com)[ Fund](https://symfony.com/sponsor)[ GitHub Sponsors](https://github.com/fabpot)[ RSS](/packages/symfony-security-core/feed)WikiDiscussions 8.1 Synced 1mo ago READMEChangelog (10)Dependencies (15)Versions (629)Used By (20)Security (5) Security Component - Core ========================= [](#security-component---core) Security provides an infrastructure for sophisticated authorization systems, which makes it possible to easily separate the actual authorization logic from so called user providers that hold the users credentials. Getting Started --------------- [](#getting-started) ``` composer require symfony/security-core ``` ``` use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolver; use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken; use Symfony\Component\Security\Core\Authorization\AccessDecisionManager; use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter; use Symfony\Component\Security\Core\Authorization\Voter\RoleVoter; use Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter; use Symfony\Component\Security\Core\Exception\AccessDeniedException; use Symfony\Component\Security\Core\Role\RoleHierarchy; $accessDecisionManager = new AccessDecisionManager([ new AuthenticatedVoter(new AuthenticationTrustResolver()), new RoleVoter(), new RoleHierarchyVoter(new RoleHierarchy([ 'ROLE_ADMIN' => ['ROLE_USER'], ])) ]); $user = new \App\Entity\User(...); $token = new UsernamePasswordToken($user, 'main', $user->getRoles()); if (!$accessDecisionManager->decide($token, ['ROLE_ADMIN'])) { throw new AccessDeniedException(); } ``` Sponsor ------- [](#sponsor) The Security component for Symfony 8.0 is [backed](https://symfony.com/backers) by [SymfonyCasts](https://symfonycasts.com). Learn Symfony faster by watching real projects being built and actively coding along with them. SymfonyCasts bridges that learning gap, bringing you video tutorials and coding challenges. Code on! Help Symfony by [sponsoring](https://symfony.com/sponsor) its development! Resources --------- [](#resources) - [Documentation](https://symfony.com/doc/current/components/security.html) - [Contributing](https://symfony.com/doc/current/contributing/index.html) - [Report issues](https://github.com/symfony/symfony/issues) and [send Pull Requests](https://github.com/symfony/symfony/pulls)in the [main Symfony repository](https://github.com/symfony/symfony) ### Health Score 82 — ExcellentBetter than 100% of packages Maintenance85 Actively maintained with recent releases Popularity78 Solid adoption and visibility Community52 Growing community involvement Maturity100 Battle-tested with a long release history Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~7 days Recently: every ~18 days Total 629 Last Release 53d ago Major Versions v7.4.0-BETA1 → v8.0.0-RC12025-10-24 v7.4.0 → v8.0.02025-11-27 v6.4.31 → v7.3.92025-12-19 v7.4.3 → v8.0.32025-12-21 v7.4.4 → 8.0.x-dev2026-01-23 PHP version history (13 changes)v2.4.0-BETA1PHP >=5.3.3 v2.7.0-BETA1PHP >=5.3.9 v3.0.0-BETA1PHP >=5.5.9 v3.3.9PHP ^5.5.9|>=7.0.8 v4.0.0-BETA1PHP ^7.1.3 v5.0.0-BETA1PHP ^7.2.9 v5.0.0PHP ^7.2.5 v5.1.0-RC2PHP >=7.2.5 v4.4.9PHP >=7.1.3 v6.0.0-BETA1PHP >=8.0.2 v6.1.0-BETA1PHP >=8.1 v7.0.0-BETA1PHP >=8.2 v8.0.0-RC1PHP >=8.4 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/47313?v=4)[Fabien Potencier](/maintainers/fabpot)[@fabpot](https://github.com/fabpot) --- Top Contributors [![nicolas-grekas](https://avatars.githubusercontent.com/u/243674?v=4)](https://github.com/nicolas-grekas "nicolas-grekas (903 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (660 commits)")[![derrabus](https://avatars.githubusercontent.com/u/1506493?v=4)](https://github.com/derrabus "derrabus (199 commits)")[![xabbuh](https://avatars.githubusercontent.com/u/1957048?v=4)](https://github.com/xabbuh "xabbuh (180 commits)")[![chalasr](https://avatars.githubusercontent.com/u/7502063?v=4)](https://github.com/chalasr "chalasr (60 commits)")[![wouterj](https://avatars.githubusercontent.com/u/749025?v=4)](https://github.com/wouterj "wouterj (57 commits)")[![jderusse](https://avatars.githubusercontent.com/u/578547?v=4)](https://github.com/jderusse "jderusse (22 commits)")[![alexandre-daubois](https://avatars.githubusercontent.com/u/2144837?v=4)](https://github.com/alexandre-daubois "alexandre-daubois (20 commits)")[![Tobion](https://avatars.githubusercontent.com/u/610090?v=4)](https://github.com/Tobion "Tobion (17 commits)")[![webmozart](https://avatars.githubusercontent.com/u/176399?v=4)](https://github.com/webmozart "webmozart (14 commits)")[![keradus](https://avatars.githubusercontent.com/u/2716794?v=4)](https://github.com/keradus "keradus (14 commits)")[![stof](https://avatars.githubusercontent.com/u/439401?v=4)](https://github.com/stof "stof (13 commits)")[![fancyweb](https://avatars.githubusercontent.com/u/3658119?v=4)](https://github.com/fancyweb "fancyweb (13 commits)")[![Nyholm](https://avatars.githubusercontent.com/u/1275206?v=4)](https://github.com/Nyholm "Nyholm (12 commits)")[![OskarStark](https://avatars.githubusercontent.com/u/995707?v=4)](https://github.com/OskarStark "OskarStark (11 commits)")[![javiereguiluz](https://avatars.githubusercontent.com/u/73419?v=4)](https://github.com/javiereguiluz "javiereguiluz (7 commits)")[![weaverryan](https://avatars.githubusercontent.com/u/121003?v=4)](https://github.com/weaverryan "weaverryan (7 commits)")[![csarrazi](https://avatars.githubusercontent.com/u/465798?v=4)](https://github.com/csarrazi "csarrazi (7 commits)")[![lyrixx](https://avatars.githubusercontent.com/u/408368?v=4)](https://github.com/lyrixx "lyrixx (6 commits)")[![saro0h](https://avatars.githubusercontent.com/u/667519?v=4)](https://github.com/saro0h "saro0h (6 commits)") --- Tags componentphpsymfonysymfony-component ### Embed Badge ![Health badge](/badges/symfony-security-core/health.svg) ``` [![Health](https://phpackages.com/badges/symfony-security-core/health.svg)](https://phpackages.com/packages/symfony-security-core) ``` ### Alternatives [symfony/security-bundle Provides a tight integration of the Security component into the Symfony full-stack framework 2.5k172.9M1.8k](/packages/symfony-security-bundle)[sylius/sylius E-Commerce platform for PHP, based on Symfony framework. 8.4k5.6M651](/packages/sylius-sylius)[defuse/php-encryption Secure PHP Encryption Library 3.9k162.4M214](/packages/defuse-php-encryption)[sulu/sulu Core framework that implements the functionality of the Sulu content management system 1.3k1.3M152](/packages/sulu-sulu)[roave/security-advisories Prevents installation of composer packages with known security vulnerabilities: no API, simply require it 2.9k97.3M6.4k](/packages/roave-security-advisories)[shopware/platform The Shopware e-commerce core 3.3k1.5M3](/packages/shopware-platform) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)