Designing Secure Fastify Plugin Boundaries
Fastify's encapsulation model isolates plugin state by default — but one `fastify-plugin` wrapper or a stray `skip-override` symbol can silently punch a hole through every boundary you had.
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.
Fastify's encapsulation model isolates plugin state by default — but one `fastify-plugin` wrapper or a stray `skip-override` symbol can silently punch a hole through every boundary you had.
CVSS says a flaw could be bad. CISA's KEV catalog, now past 1,300 entries, says one actually was exploited. Most teams still triage as if the two are the same.
Recon, enumeration, exploitation, and privilege escalation aren't just attacker steps — Log4Shell's 15-day gap between private report and public exploit shows why each maps to a disclosure decision.
Node's own docs call it a 'dual package hazard' — the same module loaded twice via require() and import can produce two objects that fail instanceof against each other.
One tampered Bash script exposed roughly 23,000 Codecov customers' credentials for two months. Environment-variable leakage is a recurring CI/CD failure mode, not a one-off.
Identity, patching, segmentation, and logging aren't a checklist — they're the four controls that determine whether a breach stays contained or becomes Log4Shell.
A base SBOM only lists what's in your build — OSV.dev, EPSS, and OpenSSF Scorecard turn that inventory into a prioritized risk decision.
Log4Shell sat exploitable for 8 days before public disclosure in December 2021 — the canonical case for why security gates belong in CI, not just at release.
DORA became fully applicable on 17 January 2025 with no grace period, and its ICT risk-management articles map almost line-for-line onto standard AppSec practice.
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