CVE-2026-54601

Medium

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.

SeverityMedium
CVSS6.3
Exploit probability—
ProductFastGPT
PublishedJul 7, 2026
First seenJul 7, 2026
Weakness typeCWE-915CWE-915

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
labring FastGPT>= 4.14.17, < 4.15.0-beta4—

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