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CVE-2026-40100

Estado: AnalizadaMedia (5.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Fastgpt — Fastgpt

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-40100",
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          "id": "CVE-2026-40100",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-15T14:45:56.717074Z"
        }
      }
    ],
    "cvssMetricV31": [
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
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      "source": "security-advisories@github.com",
      "affectedData": [
        {
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          "product": "FastGPT",
          "versions": [
            {
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              "version": "< 4.14.10.3"
            }
          ]
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    }
  ],
  "published": "2026-04-10T17:17:12.997",
  "references": [
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      "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-jrhc-f3j7-f8g4",
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      "description": [
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    }
  ],
  "lastModified": "2026-06-17T10:44:43.430",
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