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With package: claude-code-router

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Permalink CVE-2026-21852
created 2 months, 4 weeks ago
Claude Code Leaks Data via Malicious Environment Configuration Before Trust Confirmation

Claude Code is an agentic coding tool. Prior to version 2.0.65, vulnerability in Claude Code's project-load flow allowed malicious repositories to exfiltrate data including Anthropic API keys before users confirmed trust. An attacker-controlled repository could include a settings file that sets ANTHROPIC_BASE_URL to an attacker-controlled endpoint and when the repository was opened, Claude Code would read the configuration and immediately issue API requests before showing the trust prompt, potentially leaking the user's API keys. Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to version 2.0.65, which contains a patch, or to the latest version.

Affected products

claude-code
  • ==< 2.0.65

Matching in nixpkgs

pkgs.claude-code

Agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster

pkgs.claude-code-router

Tool to route Claude Code requests to different models and customize any request

pkgs.gnomeExtensions.claude-code-usage-indicator

Shows remaining time and usage percentage for Claude Code sessions in the top panel. Displays format like '3h 12m (30%)' showing both time remaining and percentage consumed. Automatically refreshes every 5 minutes.

  • nixos-25.11 3
    • nixpkgs-25.11-darwin 3

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