Vulnerability Analysis
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.
Jul 2, 20267 min read
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Supply Chain Security, in plain English.
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.
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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.
Jul 2, 20268 min read
Concepts
What Is VEX (Vulnerability Exploitability eXchange)?
VEX is a machine-readable advisory that states whether a product is actually affected by a known vulnerability. Here's how its status values work and why it cuts SBOM-driven false positives.
Jul 2, 20266 min read
Concepts
What Is the GPL License? Copyleft Explained
The GNU General Public License is the best-known copyleft license. This guide explains what it permits, its source-disclosure obligations, GPLv2 vs GPLv3, and what it means for your project.
Jul 2, 20267 min read
Concepts
What Is the BSD License? 2-Clause vs 3-Clause Explained
The BSD licenses are a family of short, permissive licenses. This guide explains the 2-clause and 3-clause variants, what each permits, and what they mean for compliance.
Jul 2, 20266 min read
Vulnerability Guides
What Is SSTI (Server-Side Template Injection)?
SSTI happens when user input is compiled as template code instead of rendered as data, often leading straight to remote code execution. Here is how to prevent it.
Jul 2, 20265 min read
FAQ
What Is Safeguard? Common Questions Answered
A beginner-friendly FAQ explaining what Safeguard is, who it is for, what it protects against, and how it compares to the tools teams already use.
Jul 2, 20264 min read
Threat Research
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.
Jul 2, 20266 min read
Concepts
What Is Malware? Types and How It Spreads
Malware is any software built to do harm, from stealing data to locking up your files. Here's a beginner-friendly tour of the main types and how it gets in.
Jul 2, 20266 min read
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