SSRF in Labring 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: 0.000 (11.4th 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
- Labring Fastgpt — versions < 4.14.9.5
Weakness classification (CWE)
References
- https://github.com/labring/FastGPT/security/advisories/GHSA-x9vj-5m4j-9mfv (x_refsource_CONFIRM)
- https://github.com/labring/FastGPT/pull/6640 (x_refsource_MISC)
- https://github.com/labring/FastGPT/commit/bc7eae2ed61481a5e322208829be291faec58c00 (x_refsource_MISC)
- https://github.com/labring/FastGPT/releases/tag/v4.14.9.5 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-34163?
- CVE-2026-34163 is a high-severity vulnerability in Labring 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.