CVE-2025-64755

CVE-2025-64755 affects Claude Code (Anthropic). A parsing error in sed command handling prior to version 2.0.31 allowed bypassing the read-only validation and writing to arbitrary host files (e.g., injection into shell config files). The issue enables potential arbitrary file writes and has been ...

GHSA-7MV8-J34Q-VP7Q @anthropic-ai/claude-code has Sed Command Validation Bypass that Allows Arbitrary File Writes

Due to an error in sed command parsing, it was possible to bypass the Claude Code read-only validation and write to arbitrary files on the host system. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the...