Expired50% confidenceBenchmarkExact time
In practical testing, all escape attempts by Claude Code within a Docker sandbox failed, including listing desktop files, querying the host operating system information, accessing the Downloads directory, and reading Chrome browser cookies.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/16/2026
First Seen
Valid until: 10/14/2026(expired)
Sources
Related Claims
UnverifiedIn Docker Sandboxes, even when Claude Code is granted full permissions, all escape tests (listing desktop files, reading Chrome Cookies, etc.) failed, and Claude Code was confined within the sandbox.76% similarUnverifiedClaude Code hides a large number of tool-call errors behind Ctrl+O, so users cannot see the more than 50 tool-call failures that occur within a single session.62% similarUnverifiedDue to a .npmignore configuration error during npm package publishing, Claude Code accidentally leaked approximately 510,000 lines of source code.62% similarUnverifiedThe tester used Claude Code to conduct agentic coding tests on Claude 4.5 Haiku, and it performed extremely poorly on tasks including Movie Tracker, Go Terminal Calculator, Godot game development, and Svelte/Nuxt/Tauri frameworks.61% similarUnverifiedUsing Claude Code requires a Claude Pro plan, and the desktop application must be downloaded, as the web version cannot achieve full functionality.60% similar
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