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GHSA-rxpq-xgqx-fr7p

InstructLab Includes Functionality from Untrusted Control Sphere

Source: GitHub Advisory Database (reviewed) High CVE-2026-6859

Packages

EcosystemPackageAffectedFixed in
PyPI instructlab <= 0.26.1 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.