What is CVE-2025-27600?

CVE-2025-27600 is a medium-severity vulnerability in Fastgpt, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2025-03-06.

How severe is CVE-2025-27600?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in Fastgpt

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2025-03-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.3th percentile), scored 2026-09-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Fastgpt
Labring Fastgpt — versions < 4.9.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/labring/FastGPT/security/advisories/GHSA-vc67-62v5-8cwx (Vendor Advisory)

Frequently asked questions

What is CVE-2025-27600?: CVE-2025-27600 is a medium-severity vulnerability in Fastgpt, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2025-03-06.
How severe is CVE-2025-27600?: Medium severity. CVSS v3 base score is 6.5 out of 10.