Pathling: Typed CRUD/search/batch providers can lead to server-wide PHI exfiltration and cross-resource mutation

{
  "id": "3b60424bb2231959f29f0b3e7546a8e84f8f0b612007330d9417355b0e0bd709",
  "url": "https://osv.dev/vulnerability/CVE-2026-47663",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pathling: Typed CRUD/search/batch providers can lead to server-wide PHI exfiltration and cross-resource mutation",
    "summary": "Pathling is a set of tools that make it easier to use FHIR and clinical terminology within health data analytics. Prior to version 2.0.0 of Pathling Server, Pathling's typed CRUD/search/batch FHIR surface allows an authenticated caller with only coarse operation authorities to act on attacker-chosen resource families because those entrypoints do not consistently enforce the documented per-resource `read` and `write` authorities. The documented authorization model requires an operation authority (e.g. `pathling:search`) to be paired with the matching per-resource `read` or `write` authority (e.g. `pathling:read:Patient`). Delete and batch are documented to require write authority for all referenced resource types. However, typed search, update, and related handlers are annotated only with `@OperationAccess(...)` and act on the provider-selected resource type without checking the corresponding per-resource authority. This is fixed in Pathling Server 2.0.0.",
    "evidence": "osv:CVE-2026-47663",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-47663",
      "aliases": [
        "CVE-2026-47663",
        "GHSA-q62q-2m46-r7rv"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/aehrc/pathling",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d31e6cab6c8fde1c9812ec6ec67d8d8def8414f3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47663.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:20.600697191Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47663.json",
        "https://github.com/aehrc/pathling/security/advisories/GHSA-q62q-2m46-r7rv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-47663"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-285"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47663.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-47663",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 486943,
  "published_at": "2026-08-07T20:26:08.349+00:00"
}