A security vulnerability in Claude Code, identified as CVE-2026-39861, allowed for a sandbox escape through symlink following. This flaw enabled attackers to write files to arbitrary locations outside the designated workspace by exploiting the interaction between sandboxed and unsandboxed processes. The vulnerability could potentially lead to code execution, and exploitation required injecting untrusted content into the Claude Code context window. AI
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IMPACT Highlights the ongoing need for robust security measures in AI development tools to prevent sandbox escapes and protect user data.
RANK_REASON Security vulnerability disclosure for a specific product.