CVE-2026-54601
FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jul 7, 2026
- Updated
- Jul 8, 2026
- Reserved
- Jun 15, 2026
Description
FastGPT is an open source AI knowledge base platform. From 4.14.17 to before 4.15.0-beta4, FastGPT allows an authenticated tenant user to call POST /api/core/dataset/collection/create/reTrainingCollection in a way that persists a server-owned datasetId value from another tenant. This creates mixed dataset objects and downstream dataset, collection, and training endpoints then make authorization decisions from inconsistent ownership anchors, allowing cross-tenant read, update, and delete access when mixed object ids are known. This issue is fixed in version 4.15.0-beta4.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | GitHub_M |
Weaknesses
- CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
Affected Products
| Product | Versions |
|---|---|
FastGPTlabring |
|
References
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