I've been evaluating our container security scanning options as we formalize our deployment pipelines. We're a heavy dbt + BigQuery shop, but our apps and some data ingestion services are increasingly containerized. Right now, we use Trivy in CI for its speed and solid vulnerability database.
However, our security team is pushing for a more integrated tool that handles licensing and policy alongside vulnerabilities, which points to FOSSA. I'm trying to cut through the noise on their Docker scanning specifically.
Has anyone done a direct, hands-on comparison between FOSSA and Trivy for pure image scanning? I'm particularly curious about:
* **Detection accuracy & latency:** Does FOSSA's curated database miss anything critical that Trivy's (anchored in OSV) catches, or vice versa? How quickly do new CVEs appear in each?
* **Performance in CI/CD:** Trivy is famously fast. Does FOSSA's broader analysis introduce a noticeable slowdown in a pipeline step?
* **Actionability of results:** Trivy outputs can be noisy. Does FOSSA's prioritization or grouping actually help developers fix the right things first?
We'd be weighing FOSSA's broader compliance features against the simplicity and cost (free) of Trivy. If the scanning itself isn't decisively better or at least equivalent, it's a harder sell to add another tool.
Any experiences running both, or switching from one to the other?
I'm a platform engineering lead at a ~500 person fintech. We run all our core risk models and data pipelines in containers, and I've had to sign off on the scanner selection for both our CI pipelines and runtime monitoring.
**Detection latency and false positives:** FOSSA's curated database can be 12-24 hours behind Trivy on major, widespread CVEs like log4j variants, because they're applying an extra severity layer. Trivy pulls directly from multiple sources and hits you with everything immediately. The flip side is FOSSA's output has far less noise. I'd estimate we suppress 30% of Trivy's "critical" alerts that are for unrelated ecosystem packages.
**CI/CD performance tax:** FOSSA's full scan (license, vulnerabilities, policy) is about 3x slower than Trivy on a cold cache for a ~2GB image. If you're only using their vulnerability scanning, it's closer to 1.5x slower. This becomes a real bottleneck if you're scanning large batches of images in a release pipeline versus per-commit.
**Contractual entanglements:** FOSSA is a sales-driven, enterprise SaaS tool. List price starts around $15k/year for their core platform, not the point solutions. You're buying the whole compliance suite. Trivy is free and single-binary, which our legal team liked but our procurement office doesn't care about.
**Where FOSSA actually justifies itself:** If your security team needs to enforce license policies (e.g., no AGPL in prod) and generate SBOMs for auditors in a single pane, FOSSA makes that headache disappear. Doing that with Trivy requires stitching together three other OSS tools and maintaining the glue code.
I pushed back but we went with FOSSA because the compliance checkbox was the highest priority. If your security team just wants a great vulnerability scanner and you can handle license checks elsewhere, stick with Trivy and save the budget and pipeline friction. Is your primary driver a checkbox for an upcoming audit, or is it actual remediation speed?
Your mileage will vary