Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/50523?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/50523?format=api", "purl": "pkg:pypi/diffusers@0.28.1", "type": "pypi", "namespace": "", "name": "diffusers", "version": "0.28.1", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "0.38.0", "latest_non_vulnerable_version": "0.38.0", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/37339?format=api", "vulnerability_id": "VCID-cejb-khrm-cuaa", "summary": "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_pretrained('repoA', custom_pipeline='attacker/repoB', trust_remote_code=False) — the gate evaluated against repoA's file list rather than repoB's, so repoB's pipeline.py was loaded and executed. DiffusionPipeline.from_pretrained('/local/snapshot', custom_pipeline='attacker/repoB', trust_remote_code=False) — the local-path branch never invoked download(), so the gate was never reached and remote code from repoB executed. DiffusionPipeline.from_pretrained('/local/snapshot', trust_remote_code=False) where the snapshot contains custom component files (e.g. unet/my_unet_model.py) referenced from model_index.json — same root cause; the local path skipped download() and custom component code executed. This vulnerability is fixed in 0.38.0.", "references": [ { "reference_url": "https://github.com/huggingface/diffusers/security/advisories/GHSA-98h9-4798-4q5v", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H" } ], "url": "https://github.com/huggingface/diffusers/security/advisories/GHSA-98h9-4798-4q5v" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50545?format=api", "purl": "pkg:pypi/diffusers@0.38.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/diffusers@0.38.0" } ], "aliases": [ "CVE-2026-44513", "GHSA-98h9-4798-4q5v", "PYSEC-2026-40" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-cejb-khrm-cuaa" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/37340?format=api", "vulnerability_id": "VCID-ne11-rre2-juc8", "summary": "Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, diffusers 0.37.0 allows remote code execution without the trust_remote_code=True safeguard when loading pipelines from Hugging Face Hub repositories. The _resolve_custom_pipeline_and_cls function in pipeline_loading_utils.py performs string interpolation on the custom_pipeline parameter using f\"{custom_pipeline}.py\". When custom_pipeline is not supplied by the user, it defaults to None, which Python interpolates as the literal string \"None.py\". If an attacker publishes a Hub repository containing a file named None.py with a class that subclasses DiffusionPipeline, the file is automatically downloaded and executed during a standard DiffusionPipeline.from_pretrained() call with no additional keyword arguments. The trust_remote_code check in DiffusionPipeline.download() is bypassed because it evaluates custom_pipeline is not None as False (since the kwarg was never supplied), while the downstream code path that actually loads the module resolves the None value into a valid filename. An attacker can achieve silent arbitrary code execution by publishing a malicious model repository with a None.py file and a standard-looking model_index.json that references a legitimate pipeline class name, requiring only that a victim calls from_pretrained on the repository. This vulnerability is fixed in 0.38.0.", "references": [ { "reference_url": "https://github.com/huggingface/diffusers/security/advisories/GHSA-j7w6-vpvq-j3gm", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H" } ], "url": "https://github.com/huggingface/diffusers/security/advisories/GHSA-j7w6-vpvq-j3gm" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/50545?format=api", "purl": "pkg:pypi/diffusers@0.38.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/diffusers@0.38.0" } ], "aliases": [ "CVE-2026-44827", "GHSA-j7w6-vpvq-j3gm", "PYSEC-2026-41" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ne11-rre2-juc8" } ], "fixing_vulnerabilities": [], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/diffusers@0.28.1" }