{"id":"CVE-2026-54601","state":"PUBLISHED","title":"FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion","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.","publishedAt":"2026-07-07T21:16:12.976Z","updatedAt":"2026-07-08T13:53:13.863Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["labring FastGPT"],"affected":[{"vendor":"labring","product":"FastGPT","versions":[{"version":">= 4.14.17, < 4.15.0-beta4","status":"affected"}]}],"references":["https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","https://github.com/labring/FastGPT/pull/7071","https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3","https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4"],"weaknesses":["CWE-915"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54601.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54601","state":"PUBLISHED","datePublished":"2026-07-07T21:16:12.976Z","dateUpdated":"2026-07-08T13:53:13.863Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T19:45:23.539Z"},"containers":{"cna":{"title":"FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"labring","product":"FastGPT","versions":[{"version":">= 4.14.17, < 4.15.0-beta4","status":"affected"}]}],"references":[{"url":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","name":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/labring/FastGPT/pull/7071","name":"https://github.com/labring/FastGPT/pull/7071","tags":["x_refsource_MISC"]},{"url":"https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3","name":"https://github.com/labring/FastGPT/commit/54a53e7d4399f1dfa2913394442c3cf6de672fb3","tags":["x_refsource_MISC"]},{"url":"https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4","name":"https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-915","lang":"en","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-07T21:16:12.976Z"},"source":{"advisory":"GHSA-qxcq-48gr-93pj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/labring/FastGPT/security/advisories/GHSA-qxcq-48gr-93pj","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T13:52:48.582115Z","id":"CVE-2026-54601","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-08T13:53:13.863Z"}}]}}}