Alternatives to govulncheck
govulncheck is the Go team's free, official CLI. Its call-graph analysis checks whether your code actually calls a vulnerable function, which means far fewer false positives, but it reports IDs and call stacks, not a CVSS or EPSS score. GeekWala covers Go plus 7 other ecosystems via OSV, adding EPSS, CISA KEV status and a web dashboard.
Just want to scan? Try the Go Modules Vulnerability Scanner.
Feature Comparison
| Feature | govulncheck | GeekWala |
|---|---|---|
| Vulnerability data | Go vulnerability database (vuln.go.dev) | OSV + EPSS + CISA KEV |
| Reachability / call-graph analysis Key difference | Yes — source-level, function-call reachability | |
| Prioritization Key difference | Reachability only (called vs not called) | EPSS exploit probability + CISA KEV |
| CISA KEV flagging Key difference | Yes — labeled field on every finding | |
| Interface | CLI output only | Web dashboard + REST API |
| Ecosystems | Go modules only | 8 ecosystems: npm, PyPI, Maven, Go, Rust, RubyGems, NuGet, Packagist |
| CI integration | Any CI via go run/binary install | Yes (Pro) — plus scheduled scans |
| Scheduled / recurring scans | Not built in — schedule via CI | Yes (Pro) |
| Maintainer | Go team (Google) | Independent |
| Privacy | Local CLI, source analyzed locally | Package names only, no source code |
| Price | Free and open source | Free tier + $12/mo or $99/yr Pro (flat-rate, unlimited projects) |
When to Use Each
When to use govulncheck
govulncheck is the right choice when:
- You work primarily in Go and want reachability-filtered results — not just a version match
- You want a zero-cost, official tool maintained directly by the Go team
- You need call-stack detail showing exactly how a vulnerable function is reached
When to use GeekWala
GeekWala is the better fit when:
- You need to prioritize by real-world exploit probability, not reachability alone
- You want CISA KEV (confirmed active exploitation) flagged as its own field
- You manage projects across multiple ecosystems, not just Go
- You want a web dashboard to share results with your team, alongside govulncheck in CI
Reachability vs Exploit-Probability Triage
Two Different Noise-Reduction Strategies
govulncheck cuts noise via reachability — is the vulnerable function actually called? GeekWala ranks by exploitation likelihood (EPSS) and confirmed exploitation (KEV) instead. Different mechanisms, same goal: fewer irrelevant alerts.
CISA KEV Alongside EPSS
govulncheck does not indicate CISA KEV status — a confirmed actively-exploited CVE looks identical to a theoretical one in its output. GeekWala flags KEV entries as a separate field on every finding, ranked first.
Built to Run Alongside govulncheck, Not Replace It
govulncheck in your Go build/CI for zero-cost, reachability-filtered checks; GeekWala for cross-ecosystem, EPSS/KEV-enriched triage and a web dashboard.
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Frequently Asked Questions
Is GeekWala a govulncheck replacement?
Not necessarily — govulncheck is free, official, and its reachability analysis genuinely reduces false positives in a way GeekWala does not attempt to replicate. GeekWala adds EPSS exploit-probability and CISA KEV enrichment for triage, plus a hosted dashboard and 7 ecosystems beyond Go. Many teams run both.
What is reachability analysis and does GeekWala have it?
govulncheck performs static call-graph analysis on your Go source to determine whether your code actually calls a vulnerable function, suppressing findings for code paths you never execute. GeekWala does not do this — it ranks all findings by EPSS exploitation probability and CISA KEV status instead.
How does GeekWala prioritization differ from govulncheck?
govulncheck's output is essentially binary: reachable or not. GeekWala ranks the same OSV-sourced findings by CISA KEV (confirmed active exploitation) first, then EPSS score above 10% (30-day exploit probability), then severity, with EPSS breaking ties.
Can I use both govulncheck and GeekWala?
Yes. Run govulncheck in CI for fast, reachability-filtered checks on every Go build, and use GeekWala for cross-ecosystem visibility and EPSS/KEV-based triage of what to fix first.
Is GeekWala free like govulncheck?
GeekWala has a free tier with 5 projects and 50 scans per month. govulncheck is fully free and open source with no usage limits — for Go-only projects that never need multi-ecosystem coverage, govulncheck alone may be enough.
Try GeekWala free
No credit card required. Keep govulncheck in your Go CI and add EPSS + CISA KEV prioritization on top.