Vulnerability · CVE-2026-6859
A flaw was found in InstructLab.
Published Apr 22, 2026 · catalog updated Jul 15, 2026 · A flaw was found
Check if you run it
No confirmed exploitation is on record for CVE-2026-6859. EPSS is 0.77%. Act only if a listed version of A flaw was found is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (A flaw was found).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.77%
- Remediation
- Advisory link
- Affected products
- cpe redhat/enterprise linux ai · cpe 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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe redhat/enterprise linux ai3.0
- cpe redhat/instructlabversion unspecified
How to fix CVE-2026-6859
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-6859. EPSS is 0.77%. Act only if a listed version of A flaw was found is installed.
Which versions are affected?
Compare what you have installed with redhat/enterprise linux ai 3.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-829: Inclusion of Functionality from Untrusted Control Sphere. EPSS 0.77%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
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.
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.
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.
Sources
- CVE.orgVulnerability recordCVE-2026-6859
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-6859
30-day exploitation probability 0.8%
first.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
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.