CVE-2026-6859HIGH 8.8EPSS p27.1%

CVE-2026-6859CVE-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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.35% probability of exploitation · percentile 27.1% · 2026-06-19T12:03:05Z
Published2026-04-22
Last modified2026-05-06

Underlying weaknesses· 1

CWE-829

References

  1. https://access.redhat.com/security/cve/CVE-2026-6859
  2. https://bugzilla.redhat.com/show_bug.cgi?id=2459998

1

TypeTargetConfidenceTier
WeaknessInclusion of Functionality from Untrusted Control Spherecwe-8290%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.