CVE-2026-86169: Inclusion of Functionality from Untrusted Control Sphere in axolotl-ai-cloud axolotl
Description
Axolotl before 0.19.0 contains a remote code execution vulnerability in the multipack patch path where trust_remote_code defaults to None instead of False, causing the security guard to be bypassed. Attackers can execute arbitrary Python code by crafting a malicious Hugging Face model repository selected as base_model, which is loaded with hardcoded trust_remote_code=True during AutoModelForCausalLM.from_pretrained.
CVSS v4.0
Score 8.7high
Affected software
axolotl-ai-cloud
axolotl
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86169 affects axolotl versions prior to 0.19.0. The vulnerability arises because the trust_remote_code parameter defaults to None instead of False in the multipack patch path, which causes the security guard to be bypassed. When loading a model with AutoModelForCausalLM.from_pretrained, the code hardcodes trust_remote_code=True, enabling attackers to execute arbitrary Python code by crafting a malicious Hugging Face model repository selected as base_model.
Potential Impact
An attacker can achieve remote code execution on systems running vulnerable versions of axolotl by supplying a malicious model repository. This can lead to full compromise of the affected system without requiring privileges or user interaction beyond model loading.
Mitigation Recommendations
A fix is available in axolotl version 0.19.0 and later. Users should upgrade to version 0.19.0 or newer to remediate this vulnerability. No additional mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-05T10:39:12.130Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9bf7fdacd9273b49bf7216
Added to database: 09/05/2026, 11:07:41 UTC
Last enriched: 09/25/2026, 02:47:38 UTC
Last updated: 10/20/2026, 06:48:19 UTC
Views: 96
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