CVE-2026-54601: CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes in labring FastGPT
FastGPT versions from 4.14.17 up to but not including 4.15.0-beta4 contain a vulnerability that allows an authenticated tenant user to persist a server-owned datasetId from another tenant. This leads to mixed dataset objects and inconsistent ownership checks, enabling cross-tenant read, update, and delete access if object IDs are known. The issue is fixed starting with version 4.15.0-beta4.
AI Analysis
Technical Summary
CVE-2026-54601 describes an improper control of dynamically-determined object attributes in labring's FastGPT platform. Specifically, an authenticated tenant user can exploit the POST /api/core/dataset/collection/create/reTrainingCollection endpoint to persist a datasetId belonging to another tenant. This causes mixed ownership anchors in dataset, collection, and training objects, resulting in authorization decisions that allow cross-tenant access to read, update, and delete operations. The vulnerability affects versions from 4.14.17 up to but excluding 4.15.0-beta4 and is addressed in 4.15.0-beta4.
Potential Impact
The vulnerability allows an authenticated tenant user to access and modify datasets belonging to other tenants, violating tenant isolation and data confidentiality. This can lead to unauthorized disclosure, modification, or deletion of data across tenant boundaries. The CVSS 3.1 base score is 6.3 (medium severity), reflecting network attack vector, low attack complexity, required privileges, no user interaction, and impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in FastGPT version 4.15.0-beta4. Users should upgrade to this version or later to remediate the vulnerability. Since no official remediation level or patch link is provided, verify with the vendor or official sources for the latest patch status and upgrade instructions. Until upgraded, restrict tenant user privileges and monitor for suspicious cross-tenant access patterns.
CVE-2026-54601: CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes in labring FastGPT
Description
FastGPT versions from 4.14.17 up to but not including 4.15.0-beta4 contain a vulnerability that allows an authenticated tenant user to persist a server-owned datasetId from another tenant. This leads to mixed dataset objects and inconsistent ownership checks, enabling cross-tenant read, update, and delete access if object IDs are known. The issue is fixed starting with 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 describes an improper control of dynamically-determined object attributes in labring's FastGPT platform. Specifically, an authenticated tenant user can exploit the POST /api/core/dataset/collection/create/reTrainingCollection endpoint to persist a datasetId belonging to another tenant. This causes mixed ownership anchors in dataset, collection, and training objects, resulting in authorization decisions that allow cross-tenant access to read, update, and delete operations. The vulnerability affects versions from 4.14.17 up to but excluding 4.15.0-beta4 and is addressed in 4.15.0-beta4.
Potential Impact
The vulnerability allows an authenticated tenant user to access and modify datasets belonging to other tenants, violating tenant isolation and data confidentiality. This can lead to unauthorized disclosure, modification, or deletion of data across tenant boundaries. The CVSS 3.1 base score is 6.3 (medium severity), reflecting network attack vector, low attack complexity, required privileges, no user interaction, and impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in FastGPT version 4.15.0-beta4. Users should upgrade to this version or later to remediate the vulnerability. Since no official remediation level or patch link is provided, verify with the vendor or official sources for the latest patch status and upgrade instructions. Until upgraded, restrict tenant user privileges and monitor for suspicious cross-tenant access patterns.
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: 07/07/2026, 21:58:47 UTC
Last updated: 07/07/2026, 23:40:45 UTC
Views: 6
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