Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-54601— FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion

Quick assessment

Affected
labring FastGPT
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

labring FastGPT是labring公司开源的一款基于大语言模型的开源知识库问答系统。 labring FastGPT 4.14.17版本至4.15.0-beta4之前版本存在输入验证错误漏洞，该漏洞源于授权决策不一致，允许认证的租户用户调用POST /api/core/dataset/collection/create/reTrainingCollection时持久化另一个租户的服务器拥有的datasetId值，从而导致跨租户读取、更新和删除访问。

CVSS 6.3 · Medium EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation

Affected Version Matrix 1

VendorProduct Version RangeStatus
labring FastGPT >= 4.14.17, < 4.15.0-beta4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54601

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-915
Source: CVE Program / CVE List V5
Vulnerability Title
labring FastGPT 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
labring FastGPT是labring公司开源的一款基于大语言模型的开源知识库问答系统。 labring FastGPT 4.14.17版本至4.15.0-beta4之前版本存在输入验证错误漏洞，该漏洞源于授权决策不一致，允许认证的租户用户调用POST /api/core/dataset/collection/create/reTrainingCollection时持久化另一个租户的服务器拥有的datasetId值，从而导致跨租户读取、更新和删除访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
labring FastGPT >= 4.14.17, < 4.15.0-beta4 -

II. Public POCs for CVE-2026-54601

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-54601

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-54601 (1)

Vendor Advisories for CVE-2026-54601 (1)

Vendor Pages for CVE-2026-54601 (1)

Same Patch Batch · labring · 2026-07-07 · 4 CVEs total

CVE-2026-55418 8.6 HIGH FastGPT: S3 presign/read handlers do not bind the object key to the caller's team (cross-t
CVE-2026-54607 7.7 HIGH FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the is
CVE-2026-54602 FastGPT: Cross-team LLM request/response disclosure (IDOR) via /api/core/ai/record/getReco

IV. Related Vulnerabilities

Same product: FastGPT
Same vendor: labring
Same weakness: CWE-915

V. Comments for CVE-2026-54601

No comments yet

Leave a comment