Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
In 2022, attackers bought an expired domain, reset a PyPI maintainer's email, and hijacked the ctx package to steal environment variables from unsuspecting installs.
CVE-2021-32803 allows crafted symlinks in tar archives to make node-tar write files outside the extraction directory via malicious npm packages.
CVE-2021-32804 let crafted tar archives bypass node-tar path sanitization, enabling arbitrary file writes during npm package extraction.
The June 2026 PyPI worm wave used a *-setup.pth file to execute at interpreter startup — before your code, before your imports, on every single python invocation. It then fetched the Bun JavaScript runtime to run its payload. If your supply chain model stops at setup.py, it has a hole in it.
On 7 July 2026, roughly 17 typosquatted payment-provider packages hit npm and PyPI — paysafe-checkout, paysafe-node, neteller and friends. They swept environment variables matching KEY, SECRET, TOKEN, PASS, AUTH and API, explicitly hunted AWS_SECRET_ACCESS_KEY, GITHUB_TOKEN and NPM_TOKEN, and exited quietly if they thought they were in a sandbox.
On 8 July 2026 npm v12 shipped with install scripts off by default — closing what GitHub called the ecosystem's largest code-execution surface. By 11 July, the jscrambler payload was executing on import instead. A study in why one-vector mitigations buy days, not years.
On 11 July 2026, five versions of the jscrambler package plus its webpack, gulp, grunt and metro plugins shipped malicious native binaries. The payload targeted crypto wallets and the credential stores of Claude Desktop, Cursor and Windsurf — and later versions fired on import, not install, defeating --ignore-scripts.
CVE-2021-37712 let malicious tar archives bypass node-tar's symlink protections on Windows via junctions, enabling path traversal during npm installs. Here's what to patch.
CVE-2020-7598 is a prototype pollution bug in minimist that let attackers taint Object.prototype, rippling through thousands of npm dependents.
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