FKIE_CVE-2026-61643

Vulnerability from fkie_nvd - Published: 2026-07-15 18:16 - Updated: 2026-07-20 16:17
Severity
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Summary
FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, an authenticated FastGPT user can save a workflow node that points to another user's private HTTP toolset by using a crafted saved tool id such as http-<victim_toolset_app_id>/<tool_name>. The normal toolset routes deny access, but the workflow save and runtime path did not apply the same authorization check to the referenced toolset, allowing /api/v2/chat/completions to resolve the saved reference and execute the victim-owned HTTP tool. This issue is fixed in version 4.15.0-beta5.
References
security-advisories@github.comhttps://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5
security-advisories@github.comhttps://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FastGPT",
          "vendor": "labring",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.14.17, \u003c 4.15.0-beta5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, an authenticated FastGPT user can save a workflow node that points to another user\u0027s private HTTP toolset by using a crafted saved tool id such as http-\u003cvictim_toolset_app_id\u003e/\u003ctool_name\u003e. The normal toolset routes deny access, but the workflow save and runtime path did not apply the same authorization check to the referenced toolset, allowing /api/v2/chat/completions to resolve the saved reference and execute the victim-owned HTTP tool. This issue is fixed in version 4.15.0-beta5."
    }
  ],
  "id": "CVE-2026-61643",
  "lastModified": "2026-07-20T16:17:06.297",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61643",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-20T14:31:52.902899Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-15T18:16:49.510",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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