{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "17.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a13fa079bc8040449570384c19f2d98f637179f1"
            },
            {
              "fixed": "2ba1fce1196268ce5686ae308eceee744237440c"
            }
          ],
          "repo": "https://github.com/opf/openproject",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-wr3w-qchj-p4cm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67528.json"
  },
  "details": "OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(current_user), so authenticated non-admin users could enumerate sequential custom option ids and read labels belonging to admin_only user or group custom fields. This issue is fixed in 17.6.0.",
  "id": "CVE-2026-67528",
  "modified": "2026-08-02T03:31:57.813874174Z",
  "published": "2026-07-30T19:24:09.494Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opf/openproject/releases/tag/v17.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67528.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67528"
    },
    {
      "type": "FIX",
      "url": "https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenProject: Improper Access Control through /api/v3/custom_options/:id via Path \"id\" leads to Sensitive Data Exposure"
}