CVE•Published 2026-04-22•Modified 2026-07-15•1 article on news•5 live references•NVD data

CVE-2026-6859Redhat · Instructlab

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 66% of all CVEs

Weaknesses (CWE)

CWE-829Inclusion of Functionality from Untrusted Control Sphere

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.

Timeline

Published 2026-04-22

Modified 2026-07-15

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-6859

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Redhat Instructlab"

All exposed Redhat Instructlab instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Instructlab"

HTTP body or banner mentions "Instructlab" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-6859