{"id":"GHSA-fmg6-246m-9g2v","summary":"Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption","details":"### Impact\nIn applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies.\n\n### Am I Affected?\nYou are affected if you meet the following preconditions:\n\n- Applications using laravel-auth0 SDK, versions between 7.0.0 and 7.20.0\n- Laravel-auth0 SDK using the Auth0-PHP SDK versions between 8.0.0 to 8.18.0.\n\n\n### Resolution\nUpgrade Auth0/laravel-auth0 to version 7.21.0 or greater.","modified":"2026-04-03T03:47:33.137524Z","published":"2026-04-03T03:41:04Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-04-03T03:41:04Z","nvd_published_at":null,"cwe_ids":["CWE-331"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/auth0/laravel-auth0/security/advisories/GHSA-fmg6-246m-9g2v"},{"type":"PACKAGE","url":"https://github.com/auth0/laravel-auth0"}],"affected":[{"package":{"name":"auth0/login","ecosystem":"Packagist","purl":"pkg:composer/auth0/login"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.21.0"}]}],"versions":["7.0.0","7.0.1","7.1.0","7.10.0","7.10.1","7.11.0","7.12.0","7.13.0","7.14.0","7.15.0","7.16.0","7.17.0","7.18.0","7.19.0","7.2.0","7.2.1","7.2.2","7.20.0","7.3.0","7.4.0","7.5.0","7.5.1","7.5.2","7.6.0","7.7.0","7.8.0","7.8.1","7.9.0","7.9.1"],"database_specific":{"last_known_affected_version_range":"\u003c= 7.20.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-fmg6-246m-9g2v/GHSA-fmg6-246m-9g2v.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N"}]}