npm-security
Safeguard articles tagged "npm-security" — guides, analysis, and best practices for software supply chain and application security.
100 articles
The Shai-Hulud npm worm campaign
A self-replicating npm worm hit 500+ packages in September 2025 and 796 more in November — here's how Shai-Hulud actually spread, stole secrets, and what stops it.
SHA1-Hulud second-wave npm supply chain incident
Shai-Hulud's November 2025 second wave hit npm via a Bun-based worm, stealing cloud creds and re-publishing trojanized packages at scale.
Maintainer Account Takeover Attacks: Hijacking Trust in Open Source
A maintainer account takeover lets an attacker publish malicious versions of a trusted package under a legitimate identity. Here is how it happens and how to defend.
Mini Shai-Hulud AntV npm packages compromise
A compromised npm maintainer account pushed 639 malicious @antv package versions in 10 minutes, stealing CI/CD secrets via a fake OpenTelemetry channel.
Axios npm package RAT supply chain compromise
A compromised maintainer account pushed malicious axios releases carrying a cross-platform RAT to npm on March 31, 2026 — here's the full timeline and IOCs.
CVE-2018-16487: Prototype pollution in lodash via merge/m...
CVE-2018-16487 let attackers pollute Object.prototype through lodash's merge, mergeWith, and defaultsDeep — a bypass of an earlier fix, patched in 4.17.11.
CVE-2020-8203: Prototype pollution in lodash zipObjectDeep
CVE-2020-8203 lets attackers pollute JavaScript's Object prototype via lodash's zipObjectDeep function, risking DoS or RCE in downstream apps.
CVE-2021-23337: Command injection in lodash template func...
CVE-2021-23337 enables command injection via lodash's template function in versions before 4.17.21. Here's the CVSS context, timeline, and how to remediate it.
CVE-2021-44906: Prototype pollution in minimist
CVE-2021-44906 exposed a prototype pollution flaw in minimist versions before 1.2.6, letting attackers pollute Object.prototype via crafted parser keys.
CVE-2017-16137: ReDoS in debug package
CVE-2017-16137 is a ReDoS flaw in the debug npm package that can hang Node.js apps on crafted input. Here's what's affected and how to fix it.
What Is Protestware? When Maintainers Weaponize Their Own Packages
Protestware is open-source code a maintainer deliberately alters to make a political or personal statement, sometimes sabotaging users. Here is how it works and how to defend.
Is vite-plugin-static-copy Safe? Understanding CVE-2025-57753 and Path Traversal
vite-plugin-static-copy is a popular Vite asset plugin, but one version range shipped a directory traversal flaw. Here is what to know and how to patch.
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