CVE-2026-35603

The record

Claude Code is an agentic coding tool. In versions prior to 2.1.75 on Windows, Claude Code loaded the system-wide default configuration from C:\ProgramData\ClaudeCode\managed-settings.json without validating directory ownership or access permissions. Because the ProgramData directory is writable by non-administrative users by default and the ClaudeCode subdirectory was not pre-created or access-restricted, a low-privileged local user could create this directory and place a malicious configuration file that would be automatically loaded for any user launching Claude Code on the same machine. Exploiting this would have required a shared multi-user Windows system and a victim user to launch Claude Code after the malicious configuration was placed. This issue has been fixed on version 2.1.75.

Affected packages

Related vulnerabilities

• GHSA-5cwg-9f6j-9jvx Claude Code: Insecure System-Wide Configuration Loading Enables Local Privilege… Same vulnerability
• CVE-2026-54316 Claude Code is an agentic coding tool. Also affects @anthropic-ai/claude-code
• GHSA-fg94-h982-f3mm Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch Also affects @anthropic-ai/claude-code
• CVE-2026-40068 In versions 2.1.63 through 2.1.83 of Claude Code, the folder trust determination logic… Also affects @anthropic-ai/claude-code
• GHSA-q5hj-mxqh-vv77 Claude Code: Trust Dialog Bypass via Git Worktree Spoofing Allows Arbitrary Code Execution Also affects @anthropic-ai/claude-code
• GHSA-vp62-r36r-9xqp Claude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside… Also affects @anthropic-ai/claude-code
• CVE-2026-39861 Claude Code is an agentic coding tool. Also affects @anthropic-ai/claude-code
• CVE-2026-33068 Claude Code is an agentic coding tool. Also affects @anthropic-ai/claude-code