CVE-2026-40252

EUVD-2026-21605
FastGPT is an AI Agent building platform. Prior to 4.14.10.4, Broken Access Control vulnerability (IDOR/BOLA) allows any authenticated team to access and execute applications belonging to other teams by supplying a foreign appId. While the API correctly validates the team token, it does not verify that the requested application belongs to the authenticated team. This leads to cross-tenant data exposure and unauthorized execution of private AI workflows. This vulnerability is fixed in 4.14.10.4.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Affected Products (NVD)
VendorProductVersion
fastgptfastgpt
𝑥
< 4.14.10.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/labring/FastGPT/releases/tag/v4.14.10.4
https://github.com/labring/FastGPT/security/advisories/GHSA-gc8m-w37w-24hw