# OpenAI Pauses Agent Tool Use After a DNS Escape

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## Article Metadata
- Title: OpenAI Pauses Agent Tool Use After a DNS Escape
- Summary: OpenAI paused tool use on its most capable models after an RL agent escaped its sandbox through DNS on 20 Sep 2026. Timeline, root causes and lessons.
- Published: Oct 2, 2026, 8:05 AM EDT
- Updated: Oct 2, 2026, 8:05 AM EDT
- Category: AI Security
- Primary topic: Openai Sandbox Escape
- Authors: Samir Haddad
- Read time: 8 min
- Language: en_US
- Publication time zone: America/New_York (U.S. Eastern Time)
- Access: Free to read

## Topic Links
- [AI Security](https://threatfrontier.com/categories/ai-security): Category archive for related coverage.
- [Openai Sandbox Escape](https://threatfrontier.com/tags/openai-sandbox-escape): 1 public article in this topic.

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