{"id":"GHSA-fmg6-246m-9g2v","aliases":[],"status":"published","title":"Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption","description":"### 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.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-331"],"published":"2026-04-03T03:41:04Z","modified":"2026-04-03T03:47:33Z","fixes":[{"ecosystem":"Packagist","package":"auth0/login","fixed_in":["7.21.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"auth0/login","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"last_affected":"7.20.0"},{"fixed":"7.21.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"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"]}],"references":[{"url":"https://github.com/auth0/laravel-auth0/security/advisories/GHSA-fmg6-246m-9g2v","tags":["web"]},{"url":"https://github.com/advisories/GHSA-fmg6-246m-9g2v"},{"url":"https://github.com/auth0/laravel-auth0","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-fmg6-246m-9g2v","title":"Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption","description":"### 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.","status":"published","published":"2026-04-03T03:41:04Z","modified":"2026-04-03T03:41:07Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T14:39:47.945242Z"}],"osv":[{"id":"GHSA-fmg6-246m-9g2v","title":"Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption","description":"### 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.","status":"published","published":"2026-04-03T03:41:04Z","modified":"2026-04-03T03:47:33.137524Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-331"],"updated_at":"2026-11-02T15:46:46.760785Z"}]}}