CVE-2026-6859

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

https://www.darkreading.com/application-security/unsloth-studio-flaw-model-inspection-code-execution

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6859.json

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-24752

https://bugzilla.redhat.com/show_bug.cgi?id=2459998

https://access.redhat.com/security/cve/CVE-2026-6859

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS