OpenReception: GET appointment by ID returns full appointment record without authorization

{
  "id": "068cc6bb86167d891aa7df0f42e69bc780ed39831f172bc076f5f7a115bae0f3",
  "url": "https://osv.dev/vulnerability/CVE-2026-48077",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenReception: GET appointment by ID returns full appointment record without authorization",
    "summary": "OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.1.0, the GET handler at `/api/tenants/{id}/appointments/{appointmentId}` performs no authorization check before returning the appointment record. Any party who knows or obtains a valid appointment UUID receives the full row, including channel and agent IDs, time and timezone, status, and the AES-GCM ciphertext components (`encryptedPayload`, `iv`, `authTag`, `dataKey`). The same file's DELETE handler calls `checkPermission(locals, tenantId, true)` before allowing deletion. The intent is clear: appointment records are tenant-scoped and require authentication to access. The GET handler is missing the equivalent call. The middleware chain (`apiAuthHandle`, `authGuard`) does not compensate: API paths bypass `authGuard` entirely, and `apiAuthHandle` does not block requests to non-admin paths when no token is present. Version 1.1.0 patches the issue.",
    "evidence": "osv:CVE-2026-48077",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-48077",
      "aliases": [
        "CVE-2026-48077",
        "GHSA-8547-9x2c-9vmf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/open-reception/appointment-booking-software",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "fc3b106991cce398552474fc6f506fe7ac70578b"
                },
                {
                  "fixed": "16474d96c591e246a103b9d6aa15ca30d436d11b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "16474d96c591e246a103b9d6aa15ca30d436d11b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.9",
            "v1.0.8",
            "v1.0.7",
            "v1.0.6",
            "v1.0.5",
            "v1.0.4",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v1.0.0-rc2",
            "v1.0.0-rc"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48077.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.829166910Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48077.json",
        "https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-8547-9x2c-9vmf",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-48077",
        "https://github.com/open-reception/appointment-booking-software/commit/16474d96c591e246a103b9d6aa15ca30d436d11b"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48077.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-48077",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504351,
  "published_at": "2026-08-06T20:47:06.576+00:00"
}