Review reviewHigh

CVE-2026-44513

huggingface diffusers, Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3

Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, a trust_remote_code bypass in DiffusionPipeline.from_pretrained allows arbitrary remote code execution despite the user passing trust_remote_code=False (or omitting it, which is the default). The vulnerability has three variants, all sharing the same root cause — the trust_remote_code gate was implemented inside DiffusionPipeline.download() rather than at the actual dynamic-module load site, so any code path that bypassed or short-circuited download() also bypassed the security check. DiffusionPipeline.from_pretrai...

CVSS: 8.8
EPSS: 0.85%
CISA KEV: Not listed
Published: 2026.05.15

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.85%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: huggingface diffusers, Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3
Affected versions: >= < 0.38.0, < 0.38.0
Fixed versions: 0.38.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that huggingface diffusers, Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-358, CWE-94