Findings

CVE-2026-6859

A flaw was found in InstructLab.

Published Apr 22, 2026 · updated Jul 15, 2026 · redhat instructlab

A flaw was found in InstructLab. The script hardcodes when loading models from HuggingFace. This allows a remote attacker to achieve arbitrary Python code execution by convincing a user to run with a specially crafted malicious model from the HuggingFace Hub. This vulnerability can lead to complete system compromise.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    A flaw was found in InstructLab. The script hardcodes when loading models from HuggingFace. This allows a remote attacker to achieve arbitrary Python code execution by convincing a user to run with a specially crafted malicious model from the HuggingFace Hub. This vulnerability can lead to complete system compromise.

  2. Jul 15, 2026 · NIST NVD

    Updated

    A flaw was found in InstructLab. The script hardcodes when loading models from HuggingFace. This allows a remote attacker to achieve arbitrary Python code execution by convincing a user to run with a specially crafted malicious model from the HuggingFace Hub. This vulnerability can lead to complete system compromise.

Affected

  • cpe redhat/enterprise linux ai3.0
  • cpe redhat/instructlabversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-6859

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-6859

    A flaw was found in InstructLab. The script hardcodes when loading models from HuggingFace. This allows a remote attacker to achieve arbitrary Python code execution by convincing a user to run with a special

    nvd.nist.gov

References