GHSA-98H9-4798-4Q5V Diffusers has a `trust_remote_code` bypass via `custom_pipeline` and local custom components

Impact A trustremotecode bypass in DiffusionPipeline.frompretrained allows arbitrary remote code execution despite the user passing trustremotecode=False or omitting it, which is the default. The vulnerability has three variants, all sharing the same root cause — the trustremotecode gate was...