{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a17e6b2496567851894ecdc80df08110125cbde7"
            }
          ],
          "repo": "https://github.com/withstudiocms/studiocms",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xvf4-ch4q-2m24"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32638.json"
  },
  "details": "StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.4, the REST API `getUsers` endpoint in StudioCMS uses the attacker-controlled `rank` query parameter to decide whether owner accounts should be filtered from the result set. As a result, an admin token can request `rank=owner` and receive owner account records, including IDs, usernames, display names, and email addresses, even though the adjacent `getUser` endpoint correctly blocks admins from viewing owner users. This is an authorization inconsistency inside the same user-management surface. Version 0.4.4 fixes the issue.",
  "id": "CVE-2026-32638",
  "modified": "2026-04-01T23:09:10.403556623Z",
  "published": "2026-03-18T20:41:14.034Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/withstudiocms/studiocms/releases/tag/studiocms@0.4.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32638.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/withstudiocms/studiocms/security/advisories/GHSA-xvf4-ch4q-2m24"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32638"
    },
    {
      "type": "FIX",
      "url": "https://github.com/withstudiocms/studiocms/commit/aebe8bcb3618bb07c6753e3f5c982c1fe6adea64"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "StudioCMS REST getUsers Exposes Owner Account Records to Admin Tokens"
}