CVE-2026-35020 — Anthropic: Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability
Anthropic Claude Code CLI and Claude Agent SDK contain an OS command injection vulnerability in the command lookup helper and deep-link terminal launcher that allows local attackers to execute arbitrary commands by manipulating the TERMINAL environment variable. Attackers can inject shell metacharacters into the TERMINAL variable which are interpreted by /bin/sh when the command lookup helper constructs and executes shell commands with shell=true. The vulnerability can be tri CVSSv3.1 8.4 (HIGH)