CVE-2025-27600: fastgpt SSRF — Fix

Description

FastGPT is a knowledge-based platform built on the LLMs. Since the web crawling plug-in does not perform intranet IP verification, an attacker can initiate an intranet IP request, causing the system to initiate a request through the intranet and potentially obtain some private data on the intranet. This issue is fixed in 4.9.0.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
fastgpt	fastgpt	< 4.9.0

References

Advisories & Patches

https://github.com/labring/FastGPT/security/advisories/GHSA-vc67-62v5-8cwx

Frequently Asked Questions

What is CVE-2025-27600? +

FastGPT is a knowledge-based platform built on the LLMs. Since the web crawling plug-in does not perform intranet IP verification, an attacker can initiate an intranet IP request, causing the system to initiate a request through the intranet and potentially obtain some private data on the intranet. This issue is fixed in 4.9.0. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-27600? +

CVE-2025-27600 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-27600? +

CVE-2025-27600 affects products from fastgpt, specifically: fastgpt. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-27600? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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