Claude Code Security Hardening: Blocks Long Commands and Unicode Spoofing
AlexKim · x · 2026-07-22
The author noted that the changelogs for Claude Code versions 2.1.214 and 2.1.216 read like a strict security audit, focusing on fixing potential permission bypass issues.
Key updates include: bash permission checks now fail closed by default; commands exceeding 10,000 characters always trigger a user prompt; worktree isolation has been strengthened; and a vulnerability allowing permission preview spoofing via invisible Unicode characters has been patched.
Related event: Claude Code 2.1.216 Update: Fixes Lag and Boosts Security(5 posts)→
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