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      <title>CVE-2026-54601 — FastGPT: reTrainingCollection allows server-owned datasetId override causing cross-tenant authorization confusion</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-54601</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; labring FastGPT&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; labring FastGPT&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;</content:encoded>
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