{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "9.57"
              },
              {
                "fixed": "9.74"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "a35e5dc12ce38325eafb75a95db20af2df5bb4fe"
            },
            {
              "fixed": "7bbd1a3fad5d868fd01d79b5908913e215698e8e"
            },
            {
              "fixed": "ca9bcfa4eeaf6293737f038381f4a3e91569f851"
            }
          ],
          "repo": "https://github.com/wekan/wekan",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mwq8-ccpm-r533"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68559.json"
  },
  "details": "Wekan is open source kanban built with Meteor. From 9.57 until 9.74, the /api/boards/:boardId/exportExcel route in models/exportExcel.js called the asynchronous exporterExcel.canExport(user) authorization guard from models/server/ExporterExcel.js without awaiting it. The returned Promise was always truthy, so exporterExcel.build(res) ran even when board.isVisibleBy(user) would deny access, allowing any authenticated non-member to download private board card titles, descriptions, lists, swimlanes, members, and metadata. This issue is fixed in version 9.74.",
  "id": "CVE-2026-68559",
  "modified": "2026-09-11T03:31:02.904248666Z",
  "published": "2026-08-19T19:20:32.150Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/wekan/wekan/releases/tag/v9.74"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68559.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68559"
    },
    {
      "type": "FIX",
      "url": "https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`)"
}