SSRF in Fastgpt
CVE-2026-34163
FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, FastGPT's MCP (Model Context Protocol) tools endpoints (/api/core/app/mcpTools/getTools and /api/core/app/mcpTools/runTool) accept a user-supplied URL parameter and make…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.003 (20.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Fastgpt
- Labring Fastgpt — versions < 4.14.9.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-34163?
- CVE-2026-34163 is a high-severity vulnerability in Fastgpt, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-03-31.
- How severe is CVE-2026-34163?
- High severity. CVSS v3 base score is 7.7 out of 10.