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@bitwarden/cli@2026.4.0 — the official command-line interface for the Bitwarden password manager — was found compromised on npm. A malicious preinstall hook silently bootstraps the Bun JavaScript runtime and launches a 9.7 MB obfuscated credential stealer that targets developer secrets, GitHub Actions environments, and — explicitly — AI coding tool configurations including ~/.claude.json and MCP server configs. All stolen data is encrypted with AES-256-GCM and exfiltrated to audit.checkmarx.cx, a domain impersonating the legitimate security company Checkmarx. When GitHub tokens are found, the malware weaponizes them to inject malicious workflows into repositories and extract CI/CD secrets — turning a single compromised developer machine into a supply chain attack pivot point.

Versions 2.6.0, 2.6.1, and 2.6.2 of xinference shipped a two-stage credential stealer that harvests SSH keys, cloud credentials, and environment variables on import. StepSecurity attributes the campaign to TeamPCP, the same actor behind the recent litellm and telnyx PyPI compromises.

On April 21, 2026, malicious versions of pgserve were published to npm. pgserve is an embedded PostgreSQL server for development — zero config, auto-provisioned databases, designed to be dropped into any Node.js project. The compromised versions (1.1.11, 1.1.12, and 1.1.13) inject a 1,143-line credential-harvesting script that runs via postinstall on every npm install.

Dev Machine Guard now scans IDE extensions across VS Code, Cursor, Windsurf, JetBrains IDEs, Android Studio, Eclipse, and Xcode on macOS, Windows, and Linux. Get a unified inventory, extension risk scoring, typosquat detection, and compromised extension visibility across your entire developer fleet.

Dev Machine Guard now supports Windows, giving security teams full visibility into Windows and macOS developer machines. Detect AI coding agents, IDE extensions, MCP servers, npm packages, and compromised dependencies across your developer fleet from a single dashboard.

StepSecurity adds cooldown and group support for Dependabot configuration, giving teams control over update frequency and PR batching across npm, pip, Docker, and GitHub Actions. Reduce alert fatigue. Merge more patches. Strengthen your supply chain.

A registry-only supply chain attack on @velora-dex/sdk delivers an architecture-aware macOS backdoor that fires the moment your code imports the package. No install hooks, no repo commits, no visible output.

StepSecurity's AI Package Analyst and Harden-Runner detected the compromise of axios, the largest npm supply chain attack on a single package by download count, before any public disclosure existed. What followed was a race against a state-sponsored threat actor who actively deleted GitHub issues to suppress the warning, a decision to host a community call at midnight that drew 200 attendees, and coverage from Bloomberg to Andrej Karpathy