Advisories for Npm/Cline package

The kanban npm package (used by the cline CLI) starts a WebSocket server on 127.0.0.1:3484 with no Origin header validation. Any website a developer visits can silently connect to the kanban server via WebSocket and: Leak sensitive data in real-time: workspace filesystem paths, task titles/descriptions, git branch info, AI agent chat messages Hijack running AI agent terminals by injecting arbitrary prompts into the agent's input, leading to remote code execution …

On February 17, 2026 at 3:26 AM PT, an unauthorized party used a compromised npm publish token to publish an update to Cline CLI on the NPM registry: cline@2.3.0. The published package contains a modified package.json with an added postinstall script: "postinstall": "npm install -g openclaw@latest" This causes openclaw (an unrelated, non-malicious open source package) to be globally installed when cline@2.3.0 is installed. No other files were modified – the …