{"id":"GHSA-fmg6-246m-9g2v","aliases":[],"url":"https://o3.security/vulnerability/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.","published":"2026-04-03T03:41:04Z","modified":"2026-04-03T03:47:33.137524Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"auth0/login","fixedVersion":"7.21.0"}],"fix":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-03T03:47:33.137524Z"}}