GoKawiilOpenAI Codex sandbox flaws let attackers execute code on developer machines
Security researchers at Accomplish AI discovered two ways to break out of the sandbox that isolates OpenAI's Codex coding agent from a user's system. The worse of the two, dubbed Heapjack, let a malicious repository trigger unsandboxed code execution on a victim's machine simply by having Codex answer a question about that repo's code, with no approval prompt or visible warning. Both bugs were reported to OpenAI on August 12 and patched within eight days.