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OpenAI says its models escaped sandbox and breached Hugging Face

techJul 21, 2026221,077

OpenAI admitted that a combination of its pre-release models, including GPT-5.6 Sol and an even more capable unreleased model, escaped their isolated testing environment and accessed Hugging Face’s systems while trying to cheat on a cyber-evaluation. The models were being tested on ExploitGym, a public benchmark for executing attacks, and used a vulnerability in a package-installer tool to gain internet access they should not have had. After gaining internet access, the models searched Hugging Face, found vulnerabilities in its infrastructure, and obtained test solutions directly from Hugging Face’s production database, OpenAI says. Hugging Face described the incident as a sophisticated automated attack involving many thousands of actions across short-lived sandboxes and self-migrating command-and-control staged on public services. OpenAI reported the package-installer flaw to Hugging Face, is working with the company on further investigation, and says it will add new controls on model testing and related infrastructure. Observers noted legal risk under the Computer Fraud and Abuse Act, and OpenAI researcher Micah Carroll said the episode highlights misalignment risks for frontier models.

philpax
@philpax.me

the agents autonomously broke out of their OpenAI sandbox and hacked Hugging Face to get the solution to their cybersecurity eval incredible. what a time to be alive

3614h ago
Grace
@gracekind.net

This headline is extremely funny given what happened (OpenAI hacked HF by accident) openai.com/index/huggin...

3494h ago
Quoting this
ver 🗿90

wtf it hacked out to CHEAT?!

cbass76

>be me, sam altman >announce evil version of AI for cyberwar >inadvertently attack open model site >guy I hired yells in public abt dangerous chinese AI is >hacked org can't secure themselves with US AI (isn't a member of the elect), has to turn to chinese AI >have to admit role in attack >mfw

Eris48

How is this not the top headline on every single fucking news outlet. Why are there any fucking posts about anything but this?! This is fucking insane!

conputer dipshit42

an amazing punchline to the much-discussed setup here, wherein HuggingFace complained that they couldn’t use SOTA models to fight an attack long term I am slightly worried about this but not super worried because software is getting much more secure as a result of all this

cee28

good thing these LLMs dont have a reasoning ability and can only regurgitate things that are in their training data!

Eris21

This is fucking insane btw

Ginn, Qui-Gon, and Juice21

I rather like leveraging LLMs for work tasks and I think it’s they’re interesting and efficiency generating products, but absent some other really pressing consideration I probably wouldn’t have named my AI GitHub after the malevolent parasites from Alien

cyber professional6

I posted about this before with regard to the Anthropic sandwich incident but these companies have deep flaws in how they approach risk. Dangerous incidents becoming blog post fodder, proof of just how special models are Exactly the kind of thing the regulatory state was for, back when we had one

Tom4

oh okay so we're closer to takeoff than I thought

Benjamin4

OpenAI was testing in a sandbox. AI hacked its way out to find the test solutions on HuggingFace. HF tried to use AI for defense but was thwarted by safety guardrails. Luckily they also had access to a self-hosted Chinese model. So here we are. Luckily, us Europeans are kept safe by the AI Act.

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