{"id":"GHSA-9wg9-93h9-j8ch","summary":"Auth0 Symfony SDK Vulnerable to Brute Force Authentication Tags of CookieStore Sessions","details":"**Overview**\nSession cookies of applications using the Auth0 symfony SDK configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access.\n\n**Am I Affected?**\nYou are affected by this vulnerability if you meet the following pre-conditions:\n1. Applications using the Auth0 symfony SDK with version \u003c=5.3.1\n2. Auth0/Symfony SDK uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. \n3. Session storage configured with CookieStore.\n\n\n**Fix**\nUpgrade Auth0/symfony to v5.4.0. As an additional precautionary measure, we recommend rotating your cookie encryption keys. Note that once updated, any previous session cookies will be rejected.\n\n**Acknowledgement**\nOkta would like to thank Félix Charette for discovering this vulnerability.","modified":"2026-02-05T14:17:42.152332Z","published":"2025-05-17T15:06:54Z","related":["CVE-2025-47275"],"database_specific":{"github_reviewed_at":"2025-05-17T15:06:54Z","nvd_published_at":null,"cwe_ids":["CWE-287"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47275"},{"type":"WEB","url":"https://github.com/auth0/symfony/commit/9a7294f08a32f17a0e77c8522a648195b6940340"},{"type":"PACKAGE","url":"https://github.com/auth0/symfony"},{"type":"WEB","url":"https://github.com/auth0/symfony/releases/tag/5.4.0"}],"affected":[{"package":{"name":"auth0/symfony","ecosystem":"Packagist","purl":"pkg:composer/auth0/symfony"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0"}]}],"versions":["0.0.1","0.0.2","0.0.3","1.0.0","1.2.0","1.2.1","1.2.10","1.2.2","1.2.3","1.2.4","1.2.5","1.2.6","1.2.7","1.2.8","1.2.9","2.0.0","2.0.1","2.0.2","2.0.3","3.0.0","3.0.0-beta.1","3.0.0-beta.2","3.0.0-beta.3","3.0.0-beta.4","3.0.0-beta.5","3.0.0-rc.1","3.0.1","3.0.2","3.1.0","3.2.0","3.3.0","3.3.1","3.4.0","4.0.0","5.0.0","5.0.0-BETA0","5.0.0-BETA1","5.1.0","5.2.0","5.2.1","5.2.2","5.2.3","5.3.0","5.3.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-9wg9-93h9-j8ch/GHSA-9wg9-93h9-j8ch.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}