Researchers escaped OpenAI's Codex sandbox two ways, one running commands on a developer's machine from its most locked-down mode. OpenAI has patched both.

Two OpenAI Codex sandbox flaws, Overpatch and Heapjack, could let malicious repositories execute commands on developer systems.

Researchers found two ways to escape the OpenAI Codex sandbox, including one flaw that could allow malicious code to run outside normal restrictions simply by opening a repository in Codex. Security ...

Authorized research on OpenAI Codex identified two sandbox flaws — patched within eight days — that reveal a structural gap between alignment thinking and containment engineering in modern AI agents.

Use a JavaScript or TypeScript project with Node.js 22 or later and a Vercel account with a team and project. This example uses the Codex harness, which requires an OpenAI API key. Create a Vercel ...

Prism's allowlist is not ours and it changes without notice: gpt-6-astra was accepted in the morning of 2026-09-17 and rejected by the afternoon with 400: Unsupported assistant model. When that ...

Unsloth details how Studio scans model code, blocks flagged weights, inspects packages and sandboxes tools before anything ...

Developer and content creator Theo Browne says he burned roughly $420,000 worth of OpenAI Codex tokens over five months trying to rewrite ...

It is Thursday morning. Over the past 24 hours, several coding agent announcements have overlapped. It has been a time when local execution, deployment monitoring, marketplaces, and examples of ...