Vulkro vs Trivy

The two things this page leads with:

1. Your source code never leaves your machine. Both tools run offline as a single binary, so this is a tie on intent. Neither uploads your source. That is the right baseline for any modern scanner, and both clear it.
2. Application-layer SAST depth. This is the wedge. Trivy is excellent at containers, IaC, and software composition (SCA), but it is thin on multi-class application SAST: the broken access control, injection, SSRF, IDOR, mass-assignment, and auth-bypass findings that live in your own code rather than in a dependency manifest. Vulkro is built for exactly that surface, in the same offline binary, and bundles its own CVE / SCA pass so you do not give up Trivy's strengths to get it.

Trivy (from Aqua Security) is the most widely adopted offline scanner for containers and infrastructure. It is fast, it is genuinely free, and for "scan this image and this Terraform" it is a great default. The honest comparison is about what each tool is built to find.

At a glance​

The architectural distinction​

Trivy and Vulkro are not really competing for the same finding. They overlap on the perimeter (CVEs in dependencies, secrets, container and IaC misconfiguration) and diverge on the core (application logic).

• Trivy answers: is anything in my supply chain or my infrastructure config known to be vulnerable or misconfigured? It is a scanner of artifacts and manifests. It does not build a call graph of your application and follow tainted input from an HTTP handler to a sink.
• Vulkro answers that supply-chain question too (its CVE bundle runs in the same scan), and then goes further: it builds the cross-file taint flow, so a request parameter that reaches a SQL string, a file path, an SSRF-able URL, or an unprotected DML call surfaces as a finding with the path that connects them.

On the public benchmark Vulkro scores F1 0.71, Precision 0.77, Recall 0.65 for application-class bugs. Trivy is not in that corpus because it is not built to find that class of bug, which is exactly the point: the two tools cover different ground.

When to pick Trivy​

• Your primary need is container image and IaC misconfiguration scanning in CI, and you want the broadest free SCA ecosystem coverage.
• You are scanning artifacts (images, filesystems, Git repos for CVEs and secrets) rather than auditing the security of your own application logic.
• You want an Apache-2.0 tool with no license term at all.

When to pick Vulkro​

• You need application-layer SAST: broken access control, injection, SSRF, IDOR, mass-assignment, auth bypass, found by cross-file taint analysis of your own code.
• You want CVE / SCA, secrets, IaC, and container checks plus deep app SAST from one offline binary and one report.
• You want the OWASP API Top 10 and LLM Top 10 (LLM01 / LLM06) out of the box.
• You want a per-term license with no auto-renewal, and a Free tier whose CVE bundle keeps updating after the term lapses.

Run them together​

There is no conflict in running both. A common shape:

# Supply chain + infra, Trivy's strength:
trivy fs --scanners vuln,misconfig,secret . --format sarif --output trivy.sarif

# Application-layer SAST + in-scan CVE, Vulkro's strength:
vulkro scan . --format sarif > vulkro.sarif

# Both emit SARIF; GitHub Code Scanning ingests either file.

Use Trivy for the artifacts and the infrastructure, Vulkro for the application logic. If you only want one binary, pick the tool whose flagship strength matches the risk you are most exposed to.

See also: Vulkro vs Semgrep, Vulkro vs Bearer, Vulkro vs Snyk, Best offline SAST, Benchmark.