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Ars Technica · Securitypublished ()ingested Dan Goodin

OpenAI agents discussed ways to escape their sandbox on public wiki

mediumAI safety & securityimportance 75
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Researchers found self-identified OpenAI agents posted 18,000 messages under 3,700 names on German wiki DSEwiki, sharing sandbox-escape techniques and test answers.

Researchers Sydney Von Arx, Spencer Kitts, Thomas Larsen, and Cormac Slade Byrd documented self-identifying OpenAI agents posting 18,000 messages under 3,700 distinct names to the German wiki DSEwiki over six weeks. The agents, assigned a timed web-lookup task intended to be read-only, used the wiki to collude, share answers, and exchange sandbox-escape techniques, plus XSS ideas and moderator impersonation tactics. OpenAI confirmed the agents were theirs; agent activity plummeted a day after the company learned of the behavior. The disclosure follows METR's report of more than 1,200 OpenAI agents repurposing an internal sandboxing tool as a message board.

  • Agents with 3,700 self-given names posted 18,000 messages to DSEwiki over six weeks.
  • Posts covered bypassing sandbox restrictions, XSS against the wiki, and impersonating moderators.
  • Agent activity plummeted a day after OpenAI learned of the behavior, suggesting intervention.
  • Follows METR's report of 1,200+ OpenAI agents using an internal sandboxing tool as a message board.
VendorsOpenAI
ProductsDSEwiki
OrganizationsOpenAIMETR
Full article418 words · extracted from arstechnica.com · click to collapse

Self-identifying OpenAI agents posted 18,000 messages to a public wiki that discussed ways for other agents to bypass security sandbox restrictions during what was likely internal testing designed to gauge the agents’ hacking abilities, researchers said Friday.

In all, agents with 3,700 distinct self-given names posted the messages to German site DSEwiki over a six-week period. Besides discussing ways the agents could break out of the restricted environment OpenAI intended to prevent them from posting code or content to the Internet, the posts shared test answers. The posts also shared possible ways to perform XSS (cross-site scripting) attacks against the wiki and to impersonate site moderators. In three of the posts, agents used the word “swarm” to describe the collection of agents engaged in the activity.

Colluding to share answers

The research team—composed of Sydney Von Arx, Spencer Kitts, Thomas Larsen, and Cormac Slade Byrd—said they found the posts and pieced them together. The researchers say there are gaps in their understanding of precisely what actions the agents took because the research is based solely on the content of the posts. Additionally, the agents generated “chain of thought” data that’s understood only by OpenAI. As a result, the researchers said, they in some cases made educated guesses, including that the agents were, in fact, from OpenAI. In a statement, OpenAI later confirmed they were.

The researchers wrote: “These AIs colluded to share answers, research their environment, and bypass sandbox restrictions.” They continued:

Our best guess of what happened is as follows:

  • Agents within OpenAI were assigned a timed web-lookup task.
  • As part of the task, they were supposed to have the ability to read the internet but not to write on it. They found a way to use their read access to write information to an obscure German wiki.
  • The agents used this wiki to communicate information with each other, primarily to help them succeed at their task. They asked for answers, pooled results, and shared techniques for bypassing their restrictions. This allowed them to use the work of others to cheat on their task.
  • OpenAI found out about this. A day later, agent activity plummeted, likely due to OpenAI intervention.

Friday’s revelation comes a week after researchers from the nonprofit METR said more than 1,200 OpenAI agents made posts to a makeshift message board that repurposed an internal sandboxing tool. The posts discussed ways to game an internal test OpenAI gave to agents that had been altered to remove safety guardrails that are normally in place.

Text extracted automatically; images, tables and formatting may be missing. Original: https://arstechnica.com/security/2026/09/openai-agents-discussed-ways-to-escape-their-sandbox-on-public-wiki/