#CheckPoint Research has discovered critical #vulnerabilities in #Anthropic’s #Claude Code that allow attackers to achieve remote code execution and steal API credentials through malicious project configurations. Stolen keys can provide access to shared Workspaces for file access and tampering. Anthropic patched the issues, including CVE-2025-59536.

Caught in the Hook: RCE and API Token Exfiltration Through Claude Code Project Files | CVE-2025-59536 | CVE-2026-21852 - Check Point Research
By Aviv Donenfeld and Oded Vanunu Executive Summary Check Point Research has discovered critical vulnerabilities in Anthropic’s Claude Code that allow attackers to achieve remote code execution and steal API credentials through malicious project configurations. The vulnerabilities exploit various configuration mechanisms including Hooks, Model Context Protocol (MCP) servers, and environment variables -executing arbitrary shell commands […]







