CVE-2026-54601
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.
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Exploitation momentum
2 days of EPSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L- 07 Jul 2026Published to NVD
- 08 Jul 2026Last modified
ATT&CK techniques
1Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.
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