Comparison with other tools

DockSec occupies a narrow, deliberate slice of the container security space: it takes scanner output and answers which of these matter, what connects to what, and what do I run. It is an OWASP Lab Project, MIT licensed, and needs no account, no API key and no network at scan time.

The honest framing first. DockSec does not find CVEs itself - it runs Trivy and Hadolint to do that. If your question is "which packages in this image have advisories", Trivy answers it directly and DockSec adds nothing to the detection. The value is in what happens to that list afterwards.

Capability matrix

Capability	DockSec	Trivy	Grype	Snyk	Docker Scout	Dependabot	Hadolint
Image CVE scanning	✅¹	✅	✅	✅	✅	❌	❌
Dockerfile linting	✅¹	✅	❌	⚠️	⚠️	❌	✅
EPSS exploitation ranking	✅	⚠️	❌	✅	⚠️	❌	❌
Cross-service exploit chains	✅	❌	❌	❌	❌	❌	❌
Compose topology analysis	✅	❌	❌	❌	❌	❌	❌
Copy-and-run fix commands	✅	❌	❌	✅	⚠️	✅²	❌
Automatic Dockerfile repair	✅	❌	❌	❌	❌	❌	❌
Explicit coverage reporting	✅	❌	❌	❌	❌	❌	❌
Runs fully offline	✅³	✅³	✅³	❌	❌	❌	✅
No account required	✅	✅	✅	❌	⚠️	⚠️	✅
No telemetry	✅	⚠️	✅	❌	❌	❌	✅
SARIF output	✅	✅	✅	✅	✅	⚠️	✅
SBOM (CycloneDX)	✅	✅	✅	✅	✅	❌	❌
Free and open source	✅	✅	✅	⚠️	⚠️	✅	✅

¹ Via Trivy and Hadolint, which DockSec runs and whose output it structures. ² For dependency manifests, not for container base images. ³ With an advisory database already on disk.

✅ supported · ⚠️ partial or conditional · ❌ not supported

What only DockSec does

Three rows in that table have a single tick, and they are the reason the project exists:

Cross-service exploit chains. Every other tool evaluates one artefact at a time. DockSec reads the Compose topology and reports that a service mounting the Docker socket and publishing a port is one path from the internet to root on the host - not two unrelated findings. See exploit chains.

Automatic Dockerfile repair. --fix applies the mechanical subset of its own advice, keeps a .bak, and refuses anything requiring judgement. See fix mode.

Explicit coverage reporting. Every run states what it could not check. A scan whose images failed to pull says so and exits 3 rather than printing a confident score over an empty result. A tool that hides its blind spots cannot be trusted as a merge gate.

Per-tool comparisons

• DockSec vs Trivy - the one DockSec depends on
• DockSec vs Snyk - the closest commercial equivalent
• DockSec vs Docker Scout
• DockSec vs Grype
• DockSec vs Dependabot - a different problem entirely
• DockSec vs Hadolint - also used internally

Which should you use

Use Trivy alone if you want raw CVE detection and will do your own triage. It is excellent, it is faster, and DockSec runs it anyway.

Use Snyk if you need a commercial platform with support contracts, multi-language coverage beyond containers, and are comfortable with findings leaving your network.

Use Dependabot for application dependency updates. It solves a different problem and complements DockSec rather than competing with it.

Use DockSec when the scanner output has become unactionable, when you run Compose stacks and care about how services combine, or when data locality is a hard requirement - regulated, government or air-gapped environments where "findings leave the network" ends the conversation.

Most teams should run Trivy or DockSec, not both - DockSec includes Trivy's findings. Running Dependabot alongside either is sensible.