Claude Code, a tool developed by Anthropic, has a security vulnerability (CVE-2025-66032) that could allow arbitrary code execution. The issue lies in the read-only permission mode's validator, which was tricked by specific shell command parsing gaps, including the use of the $IFS variable and short CLI flags. Anthropic addressed this by replacing the blocklist approach with an allowlist in version 1.0.93, a structural change acknowledging the limitations of enumerating unsafe commands. AI
IMPACT A flaw in Claude Code's security validator could allow arbitrary code execution, highlighting the challenges in trusting AI agents for automated tasks.
RANK_REASON Security vulnerability disclosure for a specific AI product.
Read on dev.to — Claude Code tag →
- Anthropic
- @anthropic-ai/claude-code
- Claude Code
- CVE-2025-66032
- CVSS v4.0
- CWE-77
- GHSA-xq4m-mc3c-vvg3
- GMO Flatt Security Inc.
- $IFS
- STUPID-2026-0121
AI-generated summary · Google Gemini · from 1 sources. How we write summaries →
