Open Source
In-depth guides and analysis on open source from the Safeguard engineering team.
252 articles
Is the npm xlsx Package Safe? A Security Review
A security review of the npm xlsx (SheetJS) package: its prototype pollution and ReDoS CVEs, the npm-versus-CDN patch gap, and how to install it safely.
npm pack: How to Publish Without Leaking Secrets
npm pack builds the exact tarball that would be published to the registry. Using it before every publish is the simplest way to avoid shipping secrets.
react-oidc-context: A Security Guide
react-oidc-context wraps oidc-client-ts in React hooks for SPA authentication. Here is how to wire it up without leaking tokens or trusting the wrong callback.
@babel/plugin-proposal-class-properties: Security and Migration Guide
This Babel plugin is deprecated, not vulnerable. The real risk is supply chain hygiene: depending on an unmaintained package when the standard replacement is a one-line swap.
Is react-native-background-upload Safe to Ship?
react-native-background-upload moves files while your app is backgrounded, which is exactly why its security depends on how you handle URLs, tokens, and native permissions.
Webpack Latest Version: Why Staying Current Is a Security Move
The webpack latest version sits in the 5.x line and updates frequently. Here is how to check which version you run, why staying current matters for security, and how to upgrade safely.
cross-fetch: Package Health and Security Review
cross-fetch still ships in thousands of lockfiles as a universal fetch polyfill. A review of its one CVE, its node-fetch dependency, and when you no longer need it.
react-native-google-places-autocomplete: A Security Guide
The react-native-google-places-autocomplete component makes location search easy, but it can also leak your Google API key straight out of a shipped app. Here's how to use it safely.
react-csv and CSV Injection: Exporting Data From React Safely
react-csv makes CSV downloads a one-component job, but it does not sanitize formula injection. Here is how to use it and where you own the security.
npm bluebird in 2025: Is the Promise Library Still Safe to Use?
The npm bluebird package still gets tens of millions of weekly downloads, but it has gone quiet. Here is an honest read on whether to keep it or migrate.
The npm prepare Script: What It Does and How to Use It Safely
The npm prepare lifecycle script runs at more moments than most developers realize, including when someone installs your package from git. Here is exactly when it fires and how to keep it from becoming an attack vector.
usehooks-ts: A Typed React Hooks Library Reviewed
usehooks-ts packs 30+ typed React hooks into a tree-shakable package with a single dependency. Here is what it does well, where it is aging, and how to vet it before adoption.
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