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[Security](/categories/security) 4. / 5. symfony/security-core ActiveLibrary[Security](/categories/security) symfony/security-core ===================== Symfony Security Component - Core Library v8.1.2(4w ago)1.9k219.0M↓19.9%3520MITPHPPHP >=8.4.1 Since Oct 7Pushed 4d 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 8.2 Synced 2w ago READMEChangelog (10)Dependencies (93)Versions (654)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 8.1 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 86 — ExcellentBetter than 100% of packages Maintenance97 Actively maintained with recent releases Popularity79 Solid adoption and visibility Community54 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 ~1 days Total 654 Last Release 24d ago Major Versions v7.4.13 → v8.0.132026-05-23 v6.4.42 → v7.4.142026-06-09 v7.4.14 → v8.0.142026-06-09 v6.4.43 → v7.4.152026-07-19 7.4.x-dev → 8.0.x-dev2026-07-19 PHP version history (14 changes)v2.4.0-BETA1PHP >=5.3.3 v2.7.0-BETA1PHP >=5.3.9 v3.0.0-BETA1PHP >=5.5.9 v3.3.7PHP ^5.5.9|>=7.0.8 v4.0.0-BETA1PHP ^7.1.3 v5.0.0-RC1PHP ^7.2.9 v5.0.1PHP ^7.2.5 v5.1.0-RC2PHP >=7.2.5 v4.4.10PHP >=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 v8.1.0-BETA1PHP >=8.4.1 ### 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 (939 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (667 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 (183 commits)")[![chalasr](https://avatars.githubusercontent.com/u/7502063?v=4)](https://github.com/chalasr "chalasr (61 commits)")[![wouterj](https://avatars.githubusercontent.com/u/749025?v=4)](https://github.com/wouterj "wouterj (57 commits)")[![alexandre-daubois](https://avatars.githubusercontent.com/u/2144837?v=4)](https://github.com/alexandre-daubois "alexandre-daubois (23 commits)")[![jderusse](https://avatars.githubusercontent.com/u/578547?v=4)](https://github.com/jderusse "jderusse (22 commits)")[![Tobion](https://avatars.githubusercontent.com/u/610090?v=4)](https://github.com/Tobion "Tobion (17 commits)")[![stof](https://avatars.githubusercontent.com/u/439401?v=4)](https://github.com/stof "stof (15 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)")[![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 (8 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 2.5k190.0M2.6k](/packages/symfony-security-bundle)[sulu/sulu Core framework that implements the functionality of the Sulu content management system 1.3k1.4M236](/packages/sulu-sulu)[contao/core-bundle Contao Open Source CMS 1301.7M3.1k](/packages/contao-core-bundle)[sylius/sylius E-Commerce platform for PHP, based on Symfony framework. 8.5k6.0M777](/packages/sylius-sylius)[symfony/console Eases the creation of beautiful and testable command line interfaces 9.8k1.2B15.1k](/packages/symfony-console)[symfony/dependency-injection Allows you to standardize and centralize the way objects are constructed in your application 4.2k464.3M10.6k](/packages/symfony-dependency-injection) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)