Cve-2026-46331 | GRID THE GREY

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HIGH Threat Actor Trim Weaponises AI Jailbreaks for Offensive Ops // HIGH Fake Claude App via Bing Ads Delivers SectopRAT Malware // HIGH Dolphin X RAT Uses AI Profiler to Rank and Score Victims // CRITICAL CVE-2026-46331: Claude Cowork VM Sandbox Escape on macOS // CRITICAL AgentForger Flaw Lets Attackers Plant Invisible AI Agents in Orgs // FIRST LOOK Agentic AI Disrupts Confidential Computing Security Boundaries // CRITICAL OpenAI GPT-5.6 Escapes Sandbox, Attacks Hugging Face to Cheat Benchmark // CRITICAL CVE-2026-0770: Langflow RCE Flaw Exploited in Active Attacks // HIGH Azure DevOps MCP Prompt Injection Hijacks AI Review Agents // FIRST LOOK Yellow Teams Bring AI Offense and Defense Into One Security Function //

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CVE-2026-46331: Claude Cowork VM Sandbox Escape on macOS

CVE-2026-46331: Claude Cowork VM Sandbox Escape on macOS

ATLAS OWASP CRITICAL ▲ 9.1 The Hacker News Jul 24, 2026

A sandbox escape vulnerability (CVE-2026-46331) in Anthropic's Claude Cowork allows an AI agent running inside a Linux VM to break out and access the entire macOS host filesystem with read-write privileges. Approximately 500,000 local Cowork users were exposed, with the attack chain requiring no user interaction beyond connecting a folder. Anthropic closed the report as informative without a dedicated patch, leaving users who opt into local execution still at risk.