{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.14.17"
              },
              {
                "fixed": "4.15.0-beta5"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "b1b97cbdebb9dc2a1c7b60cd9cd59d52d15c08e4"
            },
            {
              "fixed": "0c1840c7773c5be5d777f86228651479e02155db"
            }
          ],
          "repo": "https://github.com/labring/fastgpt",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mmg6-2g54-j896"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61644.json"
  },
  "details": "FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, the POST /api/core/chat/record/getCollectionQuote endpoint authenticates the caller's chat and collection context, but the initialId center-node lookup is not bound to that authorized context. A low-privileged tenant user can call the endpoint with valid attacker-owned appId, chatId, chatItemDataId, and collectionId values while supplying another tenant's dataset data id as initialId, causing the response to include foreign dataset quote or full-text content. This issue is fixed in version 4.15.0-beta5.",
  "id": "CVE-2026-61644",
  "modified": "2026-07-17T03:41:42.153986932Z",
  "published": "2026-07-15T14:30:26.693Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61644.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-mmg6-2g54-j896"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61644"
    },
    {
      "type": "FIX",
      "url": "https://github.com/labring/FastGPT/commit/0c1840c7773c5be5d777f86228651479e02155db"
    },
    {
      "type": "FIX",
      "url": "https://github.com/labring/FastGPT/pull/7173"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup"
}