CVE-2026-44285

FastGPT: SSRF Protection Bypass via `externalFile` in Dataset Preview API

State: Published
Severity: 7.7 High
Published: May 29, 2026
Updated: Jun 1, 2026
Reserved: May 5, 2026

Description

FastGPT is an AI Agent building platform. Prior to 4.15.0-beta1, a Server-Side Request Forgery (SSRF) vulnerability allows an authenticated attacker to bypass the global isInternalAddress network protection and make arbitrary HTTP GET requests to internal network services. This is achieved by exploiting an incomplete fix in the dataset preview endpoint /api/core/dataset/file/getPreviewChunks when utilizing the externalFile data import type. This vulnerability is fixed in 4.15.0-beta1.

Scores

CVSS	Score	Vector	Source
3.1	7.7 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
FastGPTlabring	< 4.15.0-beta1Affected

References

https://github.com/labring/FastGPT/security/advisories/GHSA-c65v-7vx6-f8m3

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