Vulnerabilities CVE-2026-6859

CVE-2026-6859

High

Open

TLP:CLEAR

Instructlab: instructlab: arbitrary code execution due to hardcoded `trust_remote_code=true`

NVD CVE.org

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Description

A flaw was found in InstructLab. The `linux_train.py` script hardcodes `trust_remote_code=True` when loading models from HuggingFace. This allows a remote attacker to achieve arbitrary Python code execution by convincing a user to run `ilab train/download/generate` with a specially crafted malicious model from the HuggingFace Hub. This vulnerability can lead to complete system compromise.

Details

CVSS Score: 8.8
EPSS Score ⓘ: 0.42%

34.6th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Apr 22, 2026
Last Modified: Jul 15, 2026

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