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Authorization Bypass Through User-Controlled Key

CVE-2026-45671

Low
0/10

Summary

Any authenticated user can permanently delete files owned by other users via `DELETE /api/v1/files/{id}` when the target file is referenced in any shared chat. The `has_access_to_file()` authorization gate unconditionally grants access through its shared-chat branch. It checks neither the requesting user's identity nor the type of operation being performed. File UUIDs (which would otherwise be impractical to guess) are disclosed to any user with read access to a knowledge base via `GET /api/v1/knowledge/{id}/files`. The affected versions are prior to 0.9.0.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • REQUIRED
  • LOW
  • HIGH
  • HIGH

CWE-639 - Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References

Advisory Timeline

  • Published