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CVE-2026-45804
Diffusers: TOCTOU Trust Remote Code Bypass
High7.5EPSS 0.37%
- Published
- Updated
- Reserved
- 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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected < 0.38.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIdiffusersGHSA-7wx4-6vff-v64p (opens in a new tab)
References (5)
- https://github.com/huggingface/diffusers/security/advisories/GHSA-7wx4-6vff-v64p (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/huggingface/diffusers/issues/13446 (opens in a new tab)x_refsource_MISCexploit
- https://github.com/huggingface/diffusers/pull/13448 (opens in a new tab)x_refsource_MISC
- https://github.com/huggingface/diffusers/commit/a37f6f8394ac2a7ee8360c3abea811efe54512b1 (opens in a new tab)x_refsource_MISC
- https://github.com/huggingface/diffusers/releases/tag/v0.38.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-7wx4-6vff-v64p (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-45804)Record last updated .