GHSA-J4H9-WV2M-WRF7 Claude Code vulnerable to arbitrary code execution caused by maliciously configured git email

At startup, Claude Code constructed a shell command that interpolated the value of git config user.email from the current workspace. If an attacker controlled the repository’s Git config e.g., via a malicious .git/config and set user.email to a crafted payload, the unescaped interpolation could...