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Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape

UnknownApr 22, 2026(1 day ago)

A critical vulnerability in Cohere AI's Terrarium sandbox allows arbitrary code execution with root privileges, enabling container escape.

A critical security vulnerability has been disclosed in a Python-based sandbox called Terrarium that could result in arbitrary code execution. The vulnerability, tracked as CVE-2026-5752, is rated 9.3 on the CVSS scoring system. "Sandbox escape vulnerability in Terrarium allows arbitrary code execution with root privileges on a host process via JavaScript prototype chain traversal," according to

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