{"id":"CVE-2026-54601","summary":"FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion","details":"FastGPT is an open source AI knowledge base platform. From 4.14.17 to before 4.15.0-beta4, FastGPT allows an authenticated tenant user to call POST /api/core/dataset/collection/create/reTrainingCollection in a way that persists a server-owned datasetId value from another tenant. This creates mixed dataset objects and downstream dataset, collection, and training endpoints then make authorization decisions from inconsistent ownership anchors, allowing cross-tenant read, update, and delete access when mixed object ids are known. This issue is fixed in version 4.15.0-beta4.","aliases":["GHSA-qxcq-48gr-93pj"],"modified":"2026-07-15T01:48:51.740436254Z","published":"2026-07-07T21:16:12.976Z","database_specific":{"cwe_ids":["CWE-915"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54601.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54601.json"},{"type":"ADVISORY","url":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54601"},{"type":"FIX","url":"https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3"},{"type":"FIX","url":"https://github.com/labring/FastGPT/pull/7071"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/labring/fastgpt","events":[{"introduced":"b1b97cbdebb9dc2a1c7b60cd9cd59d52d15c08e4"},{"fixed":"8784b62215721c87e7bd2f35d45a4e29e07d38f5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.14.17"},{"fixed":"4.15.0-beta4"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54601.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"}]}