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CVE-2026-45804

Diffusers: TOCTOU Trust Remote Code Bypass

Published: Jul 15, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-367
7.5HIGH
NVD MITRE
EPSS Score
0.3%
Top 81.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-367

Affected Products

huggingface
commercialaka huggingface/transformers, transformers, smolagents
diffusersLibraryLibrary
AI / ML / ml-framework

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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
and 2 more references View all →
News mentions
2

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