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Claude Code v2.1.211 fixes silent override of Bash execution guardrails

Claude Code version v2.1.211 has fixed a critical bug where its auto mode would silently override user-configured PreToolUse hooks designed to prompt before executing unsandboxed Bash commands. Previously, if a hook returned an 'ask' decision, the auto mode would ignore it and proceed with the command, bypassing a crucial safety guardrail. This issue was particularly concerning because unsandboxed Bash is the highest-risk tool an agent can access, making the bypass a significant security vulnerability that eroded trust in safety configurations. AI

IMPACT Fixes a critical security flaw in Claude Code's auto mode, restoring trust in its guardrail enforcement for sensitive Bash commands.

RANK_REASON This is a bug fix for a specific feature within a developer tool, not a new product release or significant industry development.

Read on dev.to — Claude Code tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code v2.1.211 fixes silent override of Bash execution guardrails

COVERAGE [1]

  1. dev.to — Claude Code tag TIER_1 English(EN) · TerminalBlog ·

    Beware: Claude Code's Auto Mode Could Silently Override Your PreToolUse Hook 'Ask' Guard — Your Hook Floor Was a No-Op

    <p>Another quiet line in the Claude Code v2.1.211 changelog deserves more attention than it got: <em>"Fixed auto mode overriding a PreToolUse hook's <code>ask</code> decision for unsandboxed Bash — a hook <code>ask</code> now floors the decision at a prompt."</em></p> <p>If you h…