CVE-2026-86169

HIGH 8.8

Axolotl before 0.19.0 Remote Code Execution via Multipack Patching

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-829
Vendor	axolotl-ai-cloud
Product	axolotl
Published	Sep 5, 2026
Last Updated	Sep 11, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

axolotl-ai-cloud / axolotl

0 < 0.19.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/axolotl-ai-cloud/axolotl/pull/3858 github.com: https://github.com/axolotl-ai-cloud/axolotl/commit/b62d60b101eea7f32532ee3c0b17c2f2430a9262 github.com: https://github.com/axolotl-ai-cloud/axolotl/blob/v0.18.0/src/axolotl/loaders/patch_manager.py#L794-L806 github.com: https://github.com/axolotl-ai-cloud/axolotl/blob/v0.18.0/src/axolotl/monkeypatch/multipack.py#L86-L96 github.com: https://github.com/axolotl-ai-cloud/axolotl/releases/tag/v0.19.0 github.com: https://github.com/axolotl-ai-cloud/axolotl vulncheck.com: https://www.vulncheck.com/advisories/axolotl-through-0.18.0-remote-code-execution-via-multipack-patching

Credits

🔍 Gregory Tan (Grg0rry)