CVE-2025-59829: Anthropic Claude Code

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was possible for Claude Code to access the file. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version. This issue is fixed in version 1.0.120.

Affected products

• Anthropic Claude Code: before 1.0.120 (fixed in 1.0.120)

Published 2025-10-03. Last modified 2026-10-08.