Apollo Router Core: Access Control Bypass on Polymorphic Types

{
  "id": "36dc5a97749edcef80a392497ee386464d5ac59a3397aff9b755dd7b06e276af",
  "url": "https://osv.dev/vulnerability/CVE-2025-64173",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apollo Router Core: Access Control Bypass on Polymorphic Types",
    "summary": "Apollo Router Core is a configurable graph router written in Rust to run a federated supergraph using Apollo Federation 2. In versions 1.61.11 below, as well as 2.0.0-alpha.0 through 2.8.1-rc.0, a vulnerability allowed for unauthenticated queries to access data that required additional access controls. Router incorrectly handled access control directives on interface types/fields and their implementing object types/fields, applying them to interface types/fields while ignoring directives on their implementing object types/fields when all implementations had the same requirements. Apollo Router customers defining @authenticated, @requiresScopes, or @policy directives inconsistently on polymorphic types (i.e., object types that implement interface types) are impacted. This issue is fixed in versions 1.61.12 and 2.8.1.",
    "evidence": "osv:CVE-2025-64173",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-64173",
      "aliases": [
        "CVE-2025-64173",
        "GHSA-x33c-7c2v-mrj9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apollographql/router",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "12517bebc84259dc2dd39d33d229358026e174f9"
                },
                {
                  "introduced": "827cfa979e45f636a5a68fcaecf3864ba7534d9d"
                },
                {
                  "fixed": "efb0dcbfe8d668e3aeb1ade1513072d449128dc4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.61.12"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.8.1-rc.0"
                      },
                      {
                        "fixed": "2.8.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "efb0dcbfe8d668e3aeb1ade1513072d449128dc4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.8.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.61.12-rc.0",
            "v2.8.1-rc.0",
            "v1.0.0",
            "v1.0.0-rc.2",
            "v1.0.0-rc.1",
            "v1.0.0-rc.0",
            "v1.0.0-alpha.3",
            "v1.0.0-alpha.2",
            "v1.0.0-alpha.1",
            "v1.0.0-alpha.0",
            "v0.16.0",
            "v0.15.1",
            "v0.15.0",
            "v0.14.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.5",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.9.0-rc.0",
            "v0.1.0-preview.7",
            "v0.1.0-preview.6",
            "v0.1.0-preview.5",
            "v0.1.0-preview.4",
            "v0.1.0-preview.3",
            "v0.1.0-preview.2",
            "v0.1.0-preview.1",
            "v0.1.0-preview.0",
            "v0.1.0-alpha.10",
            "v0.1.0-alpha.9",
            "v0.1.0-alpha.8",
            "v0.1.0-alpha.7",
            "v0.1.0-alpha.6",
            "v0.1.0-alpha.2",
            "v0.1.0-alpha.1",
            "v0.1.0-alpha.0",
            "v0.1.0-prealpha.5",
            "v0.1.0-prealpha.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64173.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.795200855Z",
      "provider": "osv",
      "references": [
        "https://github.com/apollographql/router/releases/tag/v2.8.1",
        "https://www.apollographql.com/docs/graphos/routing/security/authorization#authorization-directives",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64173.json",
        "https://github.com/apollographql/router/security/advisories/GHSA-x33c-7c2v-mrj9",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-64173"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-288"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64173.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-64173",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513696,
  "published_at": "2025-11-06T20:42:51.785+00:00"
}