CVE-2025-27600 FastGPT SSRF
Attackers can exploit missing intranet IP verification in the web crawling plugin to access private internal network data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-27600?
CVE-2025-27600 is a medium-severity server-side request forgery vulnerability in labring FastGPT, published on 6 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2025-27600?
It affects 1 product.
Products include Fastgpt Fastgpt.
How do I fix CVE-2025-27600?
No fix has been published for CVE-2025-27600 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-27600 being exploited?
There is no known exploitation of CVE-2025-27600 in the wild and no public exploit code.
Other vulnerabilities in labring FastGPT
- CVE-2026-34162 FastGPT: Unauthenticated SSRF via httpTools Endpoint Leads to Internal API Key Theft
- CVE-2026-40351 FastGPT: NoSQL Injection in loginByPassword leads to Authentication Bypass
- CVE-2026-33075 FastGPT has Arbitrary Code Execution in GitHub Actions via pull_request_target in fastgpt-preview-image.yml
- CVE-2026-40352 FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover
- CVE-2026-34163 Server-Side Request Forgery via MCP Tools Endpoint in FastGPT
Sources
Also known as GHSA-vc67-62v5-8cwx.