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.
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.
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.
Microsoft found ~70% of its patched CVEs trace to memory-safety bugs. Here's how buffer overflows, use-after-free, and double-free still happen — and what actually catches them.
None of Express, Fastify, Koa, or NestJS enable security headers, CSRF protection, or input validation by default — the defaults you inherit differ more than you'd think.
A 2008 Debian OpenSSL patch cut key entropy to ~32,768 values; a 2012 scan found 0.75% of TLS certs shared keys. Weak PRNGs still cause real breaches.
CWE-915 mass assignment lets one extra JSON field turn a profile update into a privilege escalation — here's how DTOs beat @JsonIgnore in Spring.
One unfiltered req.body.role field can turn a signup form into an admin-creation endpoint — here's how mass assignment happens in Node and how to stop it.
One unguarded setattr() loop can let a JSON body set is_admin directly — the same bug class that let a researcher add his key to Rails' GitHub org in 2012.
Node's own docs warn the vm module isn't a security mechanism — vm2, built on top of it, still shipped two CVSS 9.8 sandbox escapes in 2023.
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