{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "17.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"
            },
            {
              "fixed": "2ba1fce1196268ce5686ae308eceee744237440c"
            }
          ],
          "repo": "https://github.com/opf/openproject",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-c6rc-4288-8p4f"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67527.json"
  },
  "details": "OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/work_packages/{id} accepted _links.fileLinks and allowed authenticated users with edit_work_packages but without manage_file_links to resolve Storages::FileLink records by raw id, detach or hard-delete existing FileLinks, and re-parent FileLinks from other projects to an attacker-controlled work package, exposing origin filename, origin id, and MIME type metadata. This issue is fixed in 17.6.0.",
  "id": "CVE-2026-67527",
  "modified": "2026-08-02T03:32:03.423852460Z",
  "published": "2026-07-30T19:19:25.028Z",
  "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-2026-67527.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67527"
    },
    {
      "type": "FIX",
      "url": "https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/opf/openproject/pull/23815"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenProject: Improper Access Control through /api/v3/work_packages/\u003cX.id\u003e via PATCH parameter \"fileLinks\""
}