{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:auth0:auth0.js:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "8.11.0"
              },
              {
                "last_affected": "9.32.0"
              },
              {
                "fixed": "10.0.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "50fbf79f858b75ecf7cde344e79586af064d6220"
            },
            {
              "fixed": "5706408161535c9df05349c01dcd578139e280be"
            }
          ],
          "repo": "https://github.com/auth0/auth0.js",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8qjv-jj2q-x832"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42280.json"
  },
  "details": "Auth0.js is a client-side JavaScript library for Auth0. From 8.11.0 to 9.32.0, under specific preconditions, the Auth0.js SDK may improperly return user profile information using a valid access token when a specifically crafted invalid ID token is provided. This vulnerability is fixed in 10.0.0.",
  "id": "CVE-2026-42280",
  "modified": "2026-07-08T05:36:53.958664791Z",
  "published": "2026-05-27T14:39:15.789Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42280.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/auth0/auth0.js/security/advisories/GHSA-8qjv-jj2q-x832"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42280"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Permission Checking in Auth.js SDK"
}