ERPNext 9.0.0 through 16.50.0 Missing Authorization in Batch Lookup Methods

{
  "id": "ad003338d3787eb595909c04bd79bc0588cbcd85f31391d9b4a4bba5493ce281",
  "url": "https://osv.dev/vulnerability/CVE-2026-109377",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ERPNext 9.0.0 through 16.50.0 Missing Authorization in Batch Lookup Methods",
    "summary": "ERPNext 9.0.0 through 16.50.0 contains a missing authorization vulnerability that allows authenticated users to view stock quantities via whitelisted batch methods. Attackers, including customer portal users, can call get_batch_qty, get_batches_by_oldest or get_pos_reserved_batch_qty to list every item batch with per-warehouse quantities.",
    "evidence": "osv:CVE-2026-109377",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-109377",
      "aliases": [
        "CVE-2026-109377"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/frappe/erpnext",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8ff0a64ac2710b904919c7d889df451d57da14ee"
                },
                {
                  "fixed": "10a2400312afd17df740c6ed64e0803dfbabb623"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "9.0.0"
                      },
                      {
                        "last_affected": "16.50.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "10a2400312afd17df740c6ed64e0803dfbabb623"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109377.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.062060986Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109377.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-109377",
        "https://www.vulncheck.com/advisories/erpnext-9.0.0-through-16.50.0-missing-authorization-in-batch-lookup-methods",
        "https://github.com/frappe/erpnext/commit/10a2400312afd17df740c6ed64e0803dfbabb623",
        "https://github.com/frappe/erpnext/pull/60147",
        "https://github.com/frappe/erpnext",
        "https://github.com/frappe/erpnext/blob/v16.50.0/erpnext/stock/doctype/batch/batch.py#L235-L301"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109377.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-109377",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487190,
  "published_at": "2026-10-12T20:55:09.844+00:00"
}