Vulnerability in Labring Fastgpt
CVE-2026-54601
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.
Vulnerability class: Mass Assignment
EPSS: 0.002 (16.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Labring Fastgpt — versions >= 4.14.17, < 4.15.0-beta4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-54601?
- CVE-2026-54601 is a medium-severity vulnerability in Labring Fastgpt, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 6.3/10. Published 2026-07-07.
- How severe is CVE-2026-54601?
- Medium severity. CVSS v3 base score is 6.3 out of 10.