{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.7.0"
              },
              {
                "fixed": "2.7.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "519b9b17c7f4cbc623256ac318ea96a20f33772e"
            }
          ],
          "repo": "https://github.com/modelengine-group/nexent",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110775.json"
  },
  "details": "Nexent through 2.7.0 contains a missing authorization vulnerability in check_file_access that allows authenticated users to read other tenants' knowledge-base files by skipping tenant comparison for knowledge_base/ reads. Attackers in multi-tenant deployments can list objects via GET /file/storage for presigned URLs or use GET /file/download/{object_name} to download other tenants' source documents.",
  "id": "CVE-2026-110775",
  "modified": "2026-10-16T02:31:04.875784816Z",
  "published": "2026-10-14T18:48:05.425Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110775.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110775"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/nexent-through-2.7.0-cross-tenant-knowledge-base-file-read-via-check-file-access"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ModelEngine-Group/nexent"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ModelEngine-Group/nexent/blob/90bf1a5dbb1eb16bb4a28c2407ed4b6eda9a09bf/backend/services/file_management_service.py#L177"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackmd.io/@hieuPenguinnn/nexent-knowledge-base-cross-tenant-file-read"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nexent through 2.7.0 Cross-Tenant Knowledge-Base File Read via check_file_access"
}