published 2026-10-30
Attackers hijacked Anthropic's verified Cursor account and published a backdoored Claude extension that up to 5,000 users may have downloaded or auto-installed. How the attackers got into the verified account is still unknown.
Fixed in: 2.1.314
Source: arstechnica.com
You are affected if the installed version is older than 2.1.314. Check the version you have and update to 2.1.314 or later. The fixed version is verified against a vendor or advisory source.
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 1725 and your operating system.