Medium 6.3Published Jul 7, 2026

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

Updated under an hour ago (Oct 29, 2026, 12:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for labring FastGPT

Exploited in the last 30 days

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.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-915
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

labring FastGPT labring:fastgpt (from the name)	from 4.14.17, < 4.15.0-beta4	CNA record

References

References

https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj	x-refsource-confirm
https://github.com/labring/FastGPT/pull/7071	x-refsource-misc
https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3	x-refsource-misc
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.