CVE-2026-6859

HIGH

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

Title source: cna
STIX 2.1

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.

References (2)

Scores

CVSS v3 8.8
EPSS 0.0016
EPSS Percentile 36.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-829
Status published
Products (1)
Red Hat/Red Hat Enterprise Linux AI (RHEL AI) 3
Published Apr 22, 2026
Tracked Since Apr 22, 2026