GHSA-j4h9-wv2m-wrf7
Claude Code vulnerable to arbitrary code execution caused by maliciously configured git email
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @anthropic-ai/claude-code | < 1.0.105 | 1.0.105 |
Details
As written in the advisory (Markdown source, shown as plain text).
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!
References
External links from the advisory. They lead to third-party sites.