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OpenAdvisories
High · 7.5 CVE-2026-45804 EUVD-2026-44711GHSA-7wx4-6vff-v64pPYSEC-2026-2446

Diffusers: TOCTOU Trust Remote Code Bypass

Published Jul 15, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

Description

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, Diffusers' DiffusionPipeline.from_pretrained flow can bypass the trust_remote_code guard because download() validates model_index.json and custom pipeline code before later loading from a cached folder that can change, allowing a Hub repository with custom .py pipeline code to execute through the custom pipeline flow without passing custom_pipeline or trust_remote_code=True. This issue is fixed in version 0.38.0.

Affected products

VendorProductAffectedFixed
huggingface diffusers < 0.38.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI diffusers < 0.38.0 0.38.0 GHSA-7wx4-6vff-v64p

References