{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "9.7.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c420b5a56918475b8663977b51e5f986e45b3299"
            },
            {
              "fixed": "51eaa94c8d83b9af99b64da10f2b5c383acd8a4c"
            }
          ],
          "repo": "https://github.com/mockoon/mockoon",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rqx4-3f6q-3x2v"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-306",
      "CWE-352",
      "CWE-732",
      "CWE-942"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59148.json"
  },
  "details": "Mockoon provides way to design and run mock APIs. Prior to 9.7.0, Mockoon's admin API in commons-server/src/libs/server/admin-api.ts is mounted on the same Express listener as user-defined mock routes, enabled by default in shipped runtimes, serves Access-Control-Allow-Origin: * with write methods allowed, and has no authentication. Any unauthenticated caller who can reach the mock server port can read MOCKOON_* environment variables, write arbitrary process environment variables through /mockoon-admin/env-vars, rewrite mock route bodies, statuses, and headers through PUT /mockoon-admin/environment, read transaction logs and SSE streams, and purge state. This issue is fixed in version 9.7.0.",
  "id": "CVE-2026-59148",
  "modified": "2026-07-15T01:49:14.704603175Z",
  "published": "2026-07-09T18:27:18.579Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mockoon/mockoon/releases/tag/v9.7.0"
    },
    {
      "type": "WEB",
      "url": "https://mockoon.com/releases/9.7.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59148.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mockoon/mockoon/security/advisories/GHSA-rqx4-3f6q-3x2v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59148"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mockoon/mockoon/commit/c420b5a56918475b8663977b51e5f986e45b3299"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mockoon/mockoon/pull/2254"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Mockoon: Unauthenticated admin API + wildcard CORS allows mock-state hijack and secret theft"
}