Is CVE-2026-6859 actively exploited?

No active exploitation of CVE-2026-6859 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6859 be exploited remotely?

Yes. CVE-2026-6859 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6859?

CVE-2026-6859 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-6859

CWE-829Published: April 22, 2026· Updated: Apr 22, 2026

8.8

CVSS v3.1

EPSS:0.15%probability of exploitation in 30 daysPercentile:34.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-6859 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.