AuthKit: Sensitive auth data rendered in HTML

{
  "id": "dccf98cd986baf19f16f222a68a700dc6c240d7100168522631108e4d8dd524d",
  "url": "https://osv.dev/vulnerability/CVE-2025-55009",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "AuthKit: Sensitive auth data rendered in HTML",
    "summary": "The AuthKit library for Remix provides convenient helpers for authentication and session management using WorkOS & AuthKit with Remix. In versions 0.14.1 and below, @workos-inc/authkit-remix exposed sensitive authentication artifacts — specifically sealedSession and accessToken — by returning them from the authkitLoader. This caused them to be rendered into the browser HTML.",
    "evidence": "osv:CVE-2025-55009",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-55009",
      "aliases": [
        "CVE-2025-55009",
        "GHSA-v3gr-w9gf-23cx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/workos/authkit-remix",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "233d6c9f69ef716605e2ac49a6ac55b9b2f937d6"
                },
                {
                  "fixed": "20102afc74bf3dd5150a975a098067fb406b90b6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.15.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "20102afc74bf3dd5150a975a098067fb406b90b6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "233d6c9f69ef716605e2ac49a6ac55b9b2f937d6"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.15.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.14.1",
            "v0.14.0",
            "v0.13.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.1",
            "v0.9.0",
            "v0.8.0",
            "v0.7.1",
            "v0.7.0",
            "v0.6.0",
            "v0.5.0",
            "v0.4.1",
            "v0.4.0",
            "v0.3.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55009.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.073240737Z",
      "provider": "osv",
      "references": [
        "https://github.com/workos/authkit-remix/releases/tag/v0.15.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55009.json",
        "https://github.com/workos/authkit-remix/security/advisories/GHSA-v3gr-w9gf-23cx",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-55009",
        "https://github.com/workos/authkit-remix/commit/20102afc74bf3dd5150a975a098067fb406b90b6"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55009.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-55009",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505196,
  "published_at": "2025-08-09T02:02:07.611+00:00"
}