CVE-2026-6859

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.

  • Published Apr 22, 2026
  • CVSS 8.8 high
  • 0.8% chance of exploitation in the next 30 days (EPSS)

Affected software

In the news

CVE-2026-6859 at the National Vulnerability Database