CVE-2026-111363

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor
https://www.vulncheck.com/advisories/bisheng-through-3.0.0-beta4-idor-via-api-v1-knowledge-file-bbox
https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor

Configurations

No configuration.

History

16 Oct 2026, 15:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor -~~	() https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor -

15 Oct 2026, 22:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 22:19

Updated : 2026-10-16 15:17

NVD link : CVE-2026-111363

Mitre link : CVE-2026-111363

CVE.ORG link : CVE-2026-111363

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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