CVE-2026-40100EPSS p16.7%
CVE-2026-40100CVE-2026-40100
fastgpt / fastgpt
Description
FastGPT is an AI Agent building platform. Prior to 4.14.10.3, the /api/core/app/mcpTools/runTool endpoint accepts arbitrary URLs without authentication. The internal IP check in isInternalAddress() only blocks private IPs when CHECK_INTERNAL_IP=true, which is not the default. This allows unauthenticated attackers to perform SSRF against internal network resources. This vulnerability is fixed in 4.14.10.3.
Scoring
| CVSS | 5.3 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| EPSS | 0.25% probability of exploitation · percentile 16.7% · 2026-10-27T12:03:15Z |
| Last modified | 2026-10-26 |