CVE-2026-45804
Diffusers: TOCTOU Trust Remote Code Bypass
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-367 |
| Vendor | huggingface |
| Product | diffusers |
| Published | Jul 15, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
huggingface / diffusers
< 0.38.0
References
github.com: https://github.com/huggingface/diffusers/security/advisories/GHSA-7wx4-6vff-v64p github.com: https://github.com/huggingface/diffusers/issues/13446 github.com: https://github.com/huggingface/diffusers/pull/13448 github.com: https://github.com/huggingface/diffusers/commit/a37f6f8394ac2a7ee8360c3abea811efe54512b1 github.com: https://github.com/huggingface/diffusers/releases/tag/v0.38.0