{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.5.0"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "auth0/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1395",
      "CWE-345",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-17T20:56:37Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Description\nIn applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens.\n\n### Affected product and versions\nProjects are affected if they meet the following preconditions:\n\n- Applications using the Auth0 Symfony SDK with versions between 5.0.0 and 5.5.0\n- Auth0 Symfony SDK uses the Auth0-PHP SDK with versions between 8.0.0 and 8.17.0.\n\n### Resolution\nUpgrade Auth0/symfony to version 5.6.0 or greater.\n\n### Acknowledgement\nOkta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.",
  "id": "GHSA-f3r2-88mq-9v4g",
  "modified": "2025-12-17T20:56:37Z",
  "published": "2025-12-17T20:56:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/auth0/symfony/security/advisories/GHSA-f3r2-88mq-9v4g"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/symfony/commit/0103d6f8dcef6996653fad1f823d1c167f472479"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/auth0/symfony"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/symfony/releases/tag/5.6.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Auth0 Symfony SDK has Improper Audience Validation via Auth0-PHP SDK"
}