{"id":"CVE-2026-61644","summary":"FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text due to an unbound initialId lookup","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.","aliases":["GHSA-mmg6-2g54-j896"],"modified":"2026-07-17T03:48:22.520001210Z","published":"2026-07-15T14:30:26.693Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/labring/fastgpt","events":[{"introduced":"b1b97cbdebb9dc2a1c7b60cd9cd59d52d15c08e4"},{"fixed":"0c1840c7773c5be5d777f86228651479e02155db"}],"database_specific":{"extracted_events":[{"introduced":"4.14.17"},{"fixed":"4.15.0-beta5"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61644.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}]}