{"id":"GHSA-c42h-56wx-h85q","aliases":[],"title":"laravel-auth0 SDK Deserialization of Untrusted Data vulnerability","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","description":"**Overview**\nThe laravel-auth0 SDK contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data.\n\n\n**Am I Affected?**\nYou are affected by this vulnerability if you meet the following preconditions:\n\n1. Applications using laravel-auth0 SDK, versions between 7.0.0-BETA1 to 7.2.1.\n2. Laravel-auth0 SDK uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.\n\n**Fix**\nUpgrade Auth0/laravel-auth0 to the latest version (v7.17.0).\n\n**Acknowledgement**\nOkta would like to thank Andreas Forsblom for discovering this vulnerability.","severity":"critical","score":9.3,"published":"2025-06-06T15:20:46.000Z","modified":"2026-02-04T03:54:16.638Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"auth0/login","sources":[{"name":"OSV · GHSA-c42h-56wx-h85q","url":"https://osv.dev/vulnerability/GHSA-c42h-56wx-h85q"}],"ranges":[{"events":[{"introduced":"7.0.0-BETA1"},{"fixed":"7.2.2"}],"type":"ECOSYSTEM"}],"versions":["7.0.0","7.0.0-BETA1","7.0.0-BETA2","7.0.1","7.1.0","7.2.0","7.2.1"],"fixed":["7.2.2"]}],"sourceAffected":[],"references":["https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492","https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q","https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34","https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r","https://nvd.nist.gov/vuln/detail/CVE-2025-48951","https://github.com/auth0/laravel-auth0"],"sources":[{"name":"OSV","id":"GHSA-c42h-56wx-h85q","modified":"2026-02-04T03:54:16.638933Z","url":"https://osv.dev/vulnerability/GHSA-c42h-56wx-h85q"}],"assessments":[{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H","score":9.3}],"products":[],"remediation":[],"kev":{"status":"unavailable","checkedAt":"2026-10-28T23:00:33.393Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}