Diffusers: TOCTOU Trust Remote Code Bypass

Background This vulnerability is found in the diffusers package - the transformers-equivalent library for diffusion models. It is found in the DiffusionPipeline.frompretrained flow, which is used to load a pipeline from the HuggingFace Hub. This function has a trustremotecode guard: if the...

GHSA-7WX4-6VFF-V64P Diffusers: TOCTOU Trust Remote Code Bypass

Background This vulnerability is found in the diffusers package - the transformers-equivalent library for diffusion models. It is found in the DiffusionPipeline.frompretrained flow, which is used to load a pipeline from the HuggingFace Hub. This function has a trustremotecode guard: if the...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview diffusers is a State-of-the-art diffusion in PyTorch and JAX. Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the frompretrained flow. An attacker can execute arbitrary code by exploiting a race condition between two repository fetch...

CVE-2026-45804

creationtimestamp| type| source ---|---|--- 2026-05-20 10:40:56+00:00| published-proof-of-concept| https://github.com/huggingface/diffusers/security/advisories/GHSA-7wx4-6vff-v64p...

PYSEC-2026-41

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

PYSEC-2026-41

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

CVE-2026-44827

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

aana (>=0.2.1 <=0.2.2), ace-step (=0.1.0) +227 more potentially affected by CVE-2026-44827 via diffusers (>=0.10.2 <=0.37.1)

diffusers PYPI version =0.10.2, =0.2.1, =1.8.20, =1.9.0, =0.0.0, =0.2.2, =0.0.2, =0.0.0, =0.1.0, =0.6.37, =0.0.4, =0.1.0, =0.1.0, =0.5.0 and more Source cves: CVE-2026-44827 Source advisory: OSV:PYSEC-2026-41...

aana (>=0.2.1 <=0.2.2), ace-step (=0.1.0) +227 more potentially affected by CVE-2026-44513 via diffusers (>=0.10.2 <=0.37.1)

diffusers PYPI version =0.10.2, =0.2.1, =1.8.20, =1.9.0, =0.0.0, =0.2.2, =0.0.2, =0.0.0, =0.1.0, =0.6.37, =0.0.4, =0.1.0, =0.1.0, =0.5.0 and more Source cves: CVE-2026-44513 Source advisory: OSV:PYSEC-2026-40...

CVE-2026-44513

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, 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 variant...

PYSEC-2026-40

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, 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 variant...

PYSEC-2026-40

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, 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 variant...

CVE-2026-44827

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

CVE-2026-44827

Diffusers prior to 0.38.0 is vulnerable to silent remote code execution when loading pipelines from Hugging Face Hub without trust_remote_code. If custom_pipeline is not supplied, _resolve_custom_pipeline_and_cls formats None as None.py; a repository containing a None.py with a subclass of Diffus...

CVE-2026-44827 Diffusers: None.py Trust Remote Code Bypass

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

EUVD-2026-30332

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

CVE-2026-44827 Diffusers: None.py Trust Remote Code Bypass

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trustremotecode=True safeguard when loading pipelines from Hugging Face Hub repositories. The resolvecustompipelineandcls function in pipelineloadingutils.py...

EUVD-2026-30334

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, 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 variant...

CVE-2026-44513

Diffusers 0.38.0 fixes a trust_remote_code bypass in DiffusionPipeline.from_pretrained that allowed arbitrary remote code execution when using custom_pipeline or local snapshots. Root cause: the security gate was checked inside DiffusionPipeline.download(), but some code paths bypassed download()...

CVE-2026-44513 Diffusers: `trust_remote_code` bypass via `custom_pipeline` and local custom components

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, 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 variant...