BISHENG through 3.0.0-beta4 IDOR via /api/v1/knowledge/file_bbox

{
  "id": "a09d3c3b7d8b40675fe9bf3e9e702bf28ef552b4480d37a245d158e7cf96c1fd",
  "url": "https://osv.dev/vulnerability/CVE-2026-111363",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "BISHENG through 3.0.0-beta4 IDOR via /api/v1/knowledge/file_bbox",
    "summary": "BISHENG through 3.0.0-beta4 contains an insecure direct object reference vulnerability that allows authenticated low-privileged users to read other users' parsed documents by supplying arbitrary file_id values. Attackers can enumerate sequential file ids against GET /api/v1/knowledge/file_bbox to retrieve extracted page text from other users' and tenants' knowledge bases.",
    "evidence": "osv:CVE-2026-111363",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-111363",
      "aliases": [
        "CVE-2026-111363"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dataelement/bisheng",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4f7a019476b6c90078888519effa995141b4722b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.0.0-beta4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.0.0-beta4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.0-beta4",
            "v2.6.0-fix",
            "v2.4.0-beta1-fix",
            "v2.4.0-beta1",
            "v2.3.0",
            "v2.3.0-beta3",
            "v2.3.0-beta2",
            "v2.3.0-beta1",
            "v2.2.0",
            "v2.2.0-beta3",
            "v2.2.0-beta2",
            "v2.1.1",
            "v2.2.0-beta1",
            "v2.1.0",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.0.1",
            "v1.1.1",
            "v1.1.0",
            "v1.0.0",
            "v0.4.1.2",
            "v0.4.1.1",
            "v0.4.1",
            "v0.4.0.dev2",
            "v0.4.0.dev1",
            "v0.3.7.1",
            "v0.3.7",
            "v0.3.7.dev2",
            "v0.3.7.dev1",
            "v0.3.6.dev1",
            "v0.3.5.dev1",
            "v0.3.4",
            "v0.3.4.dev3",
            "v0.3.4.dev2",
            "v0.3.4.dev1",
            "v0.3.3.dev2",
            "v0.3.3.dev1",
            "v0.3.3beta",
            "v0.3.3rc1",
            "v0.3.2.2",
            "v0.3.2.1",
            "v0.3.2",
            "v0.3.1.2",
            "v0.3.1.1",
            "v0.3.1",
            "v0.3.0rc1",
            "v0.3.0rc0",
            "v0.3.0beta",
            "v0.2.3.2",
            "v0.2.3",
            "v0.2.2.6",
            "v0.2.2.5",
            "v0.2.2.4",
            "v0.2.2.3",
            "v0.2.2.2",
            "v0.2.2.1",
            "v0.2.2",
            "v0.2.1.2",
            "v0.2.1",
            "v0.2.0_rc1",
            "v0.2.0",
            "v0.1.10.1",
            "v0.1.10",
            "v0.1.9.5",
            "v0.1.9.4",
            "v0.1.9.3",
            "v0.1.9.2",
            "v0.1.9.1",
            "v0.1.9",
            "v0.1.8",
            "v0.1.7",
            "v0.1.6",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111363.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.124370303Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111363.json",
        "https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111363",
        "https://www.vulncheck.com/advisories/bisheng-through-3.0.0-beta4-idor-via-api-v1-knowledge-file-bbox",
        "https://github.com/dataelement/bisheng",
        "https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/api/endpoints/knowledge.py#L663-L670",
        "https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/domain/services/knowledge_service.py#L2523-L2533"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111363.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111363",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510072,
  "published_at": "2026-10-15T21:43:47.748+00:00"
}