{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.4.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ca9e5f16f520ba2cb2499c6e544f1f91573413ed"
            }
          ],
          "repo": "https://github.com/clerk/javascript",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9mp4-77wg-rwx9"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53548.json"
  },
  "details": "Clerk helps developers build user management. Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issue was resolved in @clerk/backend 2.4.0.",
  "id": "CVE-2025-53548",
  "modified": "2026-03-10T21:46:44.597088331Z",
  "published": "2025-07-09T17:12:10.483Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53548.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/clerk/javascript/security/advisories/GHSA-9mp4-77wg-rwx9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53548"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@clerk/backend Performs Insufficient Verification of Data Authenticity"
}