CVE-2026-54601: CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes in labring FastGPT
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.
AI Analysis
Technical Summary
CVE-2026-54601 is an improper control of dynamically-determined object attributes vulnerability (CWE-915) in labring FastGPT. Authenticated tenant users can exploit the POST /api/core/dataset/collection/create/reTrainingCollection endpoint to persist datasetId values belonging to other tenants. This causes mixed ownership anchors in dataset, collection, and training endpoints, resulting in authorization decisions based on inconsistent ownership. Consequently, this allows cross-tenant unauthorized read, update, and delete operations if the attacker knows the mixed object IDs. The vulnerability affects versions from 4.14.17 up to but not including 4.15.0-beta4 and is resolved in 4.15.0-beta4.
Potential Impact
An authenticated tenant user can access and modify datasets belonging to other tenants due to improper authorization checks caused by mixed ownership anchors. This leads to unauthorized cross-tenant read, update, and delete capabilities, potentially compromising data confidentiality, integrity, and availability within the affected FastGPT deployments.
Mitigation Recommendations
The vulnerability is fixed in FastGPT version 4.15.0-beta4. Users should upgrade to version 4.15.0-beta4 or later to remediate this issue. No official remediation level or patch link is provided, so verify with the vendor for the latest updates and apply the official fix accordingly.
CVE-2026-54601: CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes in labring FastGPT
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.
CVSS v3.1
Score 6.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-54601 is an improper control of dynamically-determined object attributes vulnerability (CWE-915) in labring FastGPT. Authenticated tenant users can exploit the POST /api/core/dataset/collection/create/reTrainingCollection endpoint to persist datasetId values belonging to other tenants. This causes mixed ownership anchors in dataset, collection, and training endpoints, resulting in authorization decisions based on inconsistent ownership. Consequently, this allows cross-tenant unauthorized read, update, and delete operations if the attacker knows the mixed object IDs. The vulnerability affects versions from 4.14.17 up to but not including 4.15.0-beta4 and is resolved in 4.15.0-beta4.
Potential Impact
An authenticated tenant user can access and modify datasets belonging to other tenants due to improper authorization checks caused by mixed ownership anchors. This leads to unauthorized cross-tenant read, update, and delete capabilities, potentially compromising data confidentiality, integrity, and availability within the affected FastGPT deployments.
Mitigation Recommendations
The vulnerability is fixed in FastGPT version 4.15.0-beta4. Users should upgrade to version 4.15.0-beta4 or later to remediate this issue. No official remediation level or patch link is provided, so verify with the vendor for the latest updates and apply the official fix accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T19:45:23.539Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4d7350c9d9e3dbe3e36b10
Added to database: 07/07/2026, 21:44:48 UTC
Last enriched: 07/15/2026, 12:13:53 UTC
Last updated: 08/19/2026, 22:52:13 UTC
Views: 84
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