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EUVD-2026-255144

fkie_cve-2025-59041

Claude Code is an agentic coding tool. At startup, Claude Code executed a command templated in with `git config user.email`. Prior to version 1.0.105, a maliciously configured user email in git could be used to trigger arbitrary code execution before a user accepted the workspace trust dialog. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to version 1.0.105 or the latest version.

GHSA-j4h9-wv2m-wrf7 — Claude Code vulnerable to arbitrary code execution caused by maliciously configured git email

Affected: npm: @anthropic-ai/claude-code

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 trigger arbitrary command execution **before** the user accepted the workspace-trust dialog. The issue affects versions prior to `1.0.105`. The fix in `1.0.105` avoids executing commands built from untrusted configuration and properly validates/escapes inputs.

* **Patches:** Update to `@anthropic-ai/claude-code` `1.0.105` or later. * **Workarounds:** Open only trusted workspaces and inspect repository `.git/config` before launch; avoid inheriting untrusted Git configuration values.

> Thank you to the NVIDIA AI Red Team for reporting this issue!