Security advisory

{
  "id": "5459c9297f54b45127a58bd5ae5e39a73adf890542b6ad10f81e4b7b81330c60",
  "url": "https://osv.dev/vulnerability/CVE-2026-38587",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-38587",
    "summary": "An Insecure Direct Object Reference (IDOR) vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions (User or Guest) to retrieve sensitive information, such as the Owner's unique identifier (ID) and profile information, which should only be accessible to administrators.",
    "evidence": "osv:CVE-2026-38587",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-38587",
      "aliases": [
        "CVE-2026-38587"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/onlyoffice/docspace",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "608eeb44ac26ea9958fd0d5a5bcae7859f224a76"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.2.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.1.1",
            "v3.1.0",
            "v3.0.4",
            "v3.0.1",
            "v3.0.0",
            "v2.6.3",
            "v2.6.2",
            "v2.6.0",
            "v2.5.1",
            "v2.5.0",
            "v2.0.3",
            "v2.0.2",
            "v2.0.0",
            "v1.1.1-server",
            "v1.0.1",
            "v1.0.0",
            "v1.0.0-pre",
            "personal-v1.2.0",
            "personal-v1.1.1",
            "personal-v1.1.0",
            "personal-v1.0.1",
            "personal-v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-38587.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.493096324Z",
      "provider": "osv",
      "references": [
        "https://github.com/ONLYOFFICE/DocSpace/blob/master/CHANGELOG.md#security",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38587.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-38587"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38587.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-38587",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491910,
  "published_at": "2026-05-26T00:00:00+00:00"
}