CVE-2026-86169 Axolotl before 0.19.0 Remote Code Execution via Multipack Patching
Attackers can execute arbitrary Python code by exploiting a trust_remote_code bypass in Axolotl's multipack patching mechanism.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-86169?
CVE-2026-86169 is a high-severity code injection vulnerability in axolotl-ai-cloud axolotl, published on 5 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-829
Which versions are affected by CVE-2026-86169?
How do I fix CVE-2026-86169?
No fix has been published for CVE-2026-86169 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-86169 being exploited?
There is no known exploitation of CVE-2026-86169 in the wild and no public exploit code.
Sources
Also known as GHSA-57g9-xg4g-rmpp.