Description
Claude Code is an agentic coding tool. From 2.1.38 until 2.1.163, Claude Code's worktree handling allowed creation of worktrees named ".git" and navigation to worktrees outside the sandbox context, enabling git directory confusion attacks. By exploiting symlink manipulation and git fsmonitor execution during worktree operations, an attacker could overwrite files in the user's home directory (such as .zshenv), leading to code execution outside of seatbelt sandbox restrictions. Reliably exploiting this required the user to clone a malicious repository containing prompt injection content and run Claude Code against it. This vulnerability is fixed in 2.1.163.
Severity (CVSS)
| Base score | 7.7 |
|---|---|
| Severity | High |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-22 — CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-59 — CWE-59: Improper Link Resolution Before File Access ('Link Following')
- CWE-78 — CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
| Vendor | Product | Versions |
|---|---|---|
| anthropics | claude-code | >= 2.1.38, < 2.1.163 |
References
- https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv (x_refsource_CONFIRM)
Generated from the official CVE List on 30 Jun 2026 07:04 UTC.