Claude Code: plugin hash-pin bypass

published 2026-10-15

A High-severity flaw in Claude Code lets the hash pin on a plugin be bypassed. Anthropic fixed it in version 2.1.179.

Fixed in: 2.1.179

CVE: CVE-2026-86063

Source: GitHub Advisory

Am I affected?

You are affected if the installed version is older than 2.1.179. Check the version you have and update to 2.1.179 or later. The fixed version is verified against a vendor or advisory source.

Get the fix

FixLane has a reviewed fix procedure for this incident: a read-only check first, then the fix. Ask the Telegram bot, or connect an AI agent to the FixLane MCP server and call get_fix_prompt with incident id 1794 and your operating system.