Day 2 of 60
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Static analysis & type-time
Dependency vulnerability scanning
Your last security incident was probably a CVE in a library you forgot you depended on. Renovate finds them before the attacker does.
ProblemKnown CVEs in third-party packages.
How it works
Compares the project's lockfile against vulnerability databases. Auto-PRs for upgrades.
What it catches
Known CVEs. Necessary; not sufficient. Won't catch logic bugs or zero-days.
Tools
Dependabot · OSS Renovate · OSS Trivy · OSS Snyk · SaaS
Verdict by project size
Small
Must
Medium
Must
Large
Must
Extra-large
Must
Cost
| Project size | Setup | Maint / mo | Tool / mo | CI / run |
|---|---|---|---|---|
| Small <10k LOC | 2h | 0.5h | $0 | +0.5m |
| Medium 10–100k LOC | 1d | 4h | $0 | +1m |
| Large 100k–1M LOC | 3d | 15h | $200 | +2m |
| Extra-large >1M LOC | 10d | 60h | $2k | +5m |
Setup = engineer-days to first useful run ·
Maint = engineer-hours / month at steady state ·
Tool = out-of-pocket $ / month ·
CI = minutes added (or saved) per pipeline run
Lifecycle & ownership
When in lifecycle
Code Build
Per pull request · Runs in CI on every PR; gates merge.
Who owns it
Developer
Authoring + the inner loop
Collaborates with: Security / AppSec
Reference implementations
-
Renovate bot
Reference implementation for dependency update automation and grouped upgrade policy.
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Dependabot Core
Dependency graph parsing and update PR generation across package ecosystems.
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OWASP Dependency-Check
Reference implementation for matching project dependencies against known CVEs.
Quick check
Dependency vulnerability scanning is necessary but not sufficient because…
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