{"id":"CVE-2026-54601","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-54601","generatedAt":"2026-10-28T04:37:56.747Z","title":"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.","description":"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.","published":"2026-07-07T22:16:53.000Z","lastModified":"2026-10-25T20:10:00.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"},"cwe":["CWE-915"],"affected":[],"epss":{"score":0.00296,"percentile":0.22109,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3","source":"security-advisories@github.com"},{"url":"https://github.com/labring/FastGPT/pull/7071","source":"security-advisories@github.com"},{"url":"https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4","source":"security-advisories@github.com"},{"url":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","source":"security-advisories@github.com"},{"url":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-54601","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}