CVE-2026-111363CWE-639

CVE-2026-111363

Medium · published October 16, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
14.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
7.1 · 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
EPSS
0.00238 · 14.1th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-16T02:19Z
References (6)
https://github.com/dataelement/bisheng · [email protected]https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/api/endpoints/knowledge.py#L663-L670 · [email protected]https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/domain/services/knowledge_service.py#L2523-L2533 · [email protected]https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor · [email protected]https://www.vulncheck.com/advisories/bisheng-through-3.0.0-beta4-idor-via-api-v1-knowledge-file-bbox · [email protected]https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 21:43Z
    BISHENG through 3.0.0-beta4 IDOR via /api/v1/knowledge/file_bbox
    cvelistv5
  • 15 OCT 21:43Z
    BISHENG through 3.0.0-beta4 IDOR via /api/v1/knowledge/file_bbox
    cvelistv5