Application Security
Out-of-Bounds Write Vulnerabilities (CWE-787) Explained
CWE-787 out-of-bounds write bugs let attackers corrupt memory past a buffer's limit, causing crashes or code execution. Here's how they work.
Jul 16, 20268 min read
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Improper Restriction of Operations Within Memory Bounds
CWE-119 has topped MITRE's vulnerability rankings for years, from Heartbleed to WannaCry to the 2023 libwebp zero-day. Here's why it persists and how to catch it early.
Jul 15, 20267 min read
Application Security
Integer Overflow and Wraparound Vulnerabilities
A single wrapped integer minted 184B bitcoin, grounded 787s, and erased $900M from a crypto token. Here's how overflow bugs work—and how Safeguard catches them first.
Jul 15, 20268 min read
Application Security
Double-Free Vulnerabilities in C and C++
Double-free bugs let attackers corrupt heap memory and hijack control flow. Here's how they happen in C/C++, real CVEs, and how to catch them early.
Jul 15, 20268 min read
Application Security
Secure file uploads in Node.js and Fastify
CWE-22 path traversal climbed three spots to #5 on the 2024 CWE Top 25. Here's how to validate, store, and scan Fastify uploads without trusting the client.
Jul 15, 20266 min read
Application Security
Designing a secure Node.js API gateway: auth, rate limits, validation, and signing
CVE-2020-15084 let attackers forge JWTs against express-jwt because one algorithm check was missing — a case study in why gateways need four defense layers, not one.
Jul 15, 20266 min read
Application Security
React and TypeScript security best practices for 2026
A 2025 npm phishing attack hit packages with 2.6 billion weekly downloads. Here's how React and TypeScript teams reduce XSS, API, and dependency risk.
Jul 15, 20266 min read
Application Security
Path traversal, decoded: canonicalization patterns across languages
CVE-2021-41773 turned a broken path-normalization routine in Apache 2.4.49 into remote code execution. Here's how canonicalization stops the whole bug class.
Jul 15, 20266 min read
Application Security
The OWASP Top 10:2025, explained with minimal fix-it code
OWASP reordered its Top 10 for 2025 — Broken Access Control is back at #1 and a new Mishandling of Exceptional Conditions category debuts at #10.
Jul 15, 20269 min read
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