Number 1: Docker Scout
by Docker
Best for: useful image findings without standing up new infrastructure
Freemium
Growing
Ranked list · Container Security
Top 8 Container Security Tools
8 tools, ranked Last reviewed
A practitioner's guide to eight container and Kubernetes security tools, picked for distinct scenarios rather than ranked, with honest trade-offs.
The order follows the roundup The 8 Best Container Security Tools, which explains each pick and where it falls short.
Number 2: Red Hat Advanced Cluster Security (StackRox)
by Red Hat
Best for: one policy set evaluated in CI, at admission and at runtime across many clusters
Open source and commercial
Established
Number 3: Aqua Security
Best for: covering containers, virtual machines and serverless functions under one control plane
Commercial
Established
Best for: making your own registry the control point where images are scanned, signed and gated
Open source
Established
Best for: layer 7 traffic inspection and behavioral blocking on an open source license
Open source
Established
Best for: enforcing segmentation between workloads at the dataplane
Open source and commercial
Established
Number 7: kube-bench
Best for: producing configuration evidence against the CIS Kubernetes Benchmark for an auditor
Open source
Established
Number 8: Clair
Best for: embedding layer level vulnerability indexing as a service in a platform you are building
Open source
Established
methodology
How this list was made
How entries are chosen. Every entry is a tool with a published profile in the catalog, in Container and Image Security. Each note above says why it made this list, for the job in the title, separately from the tool's full profile.
Ranking is editorial. The order is a judgement by the editors about fit for this use case, not a score, a benchmark or a popularity count. A different job can produce a different order.
Advertising has no influence. Slots marked Sponsored are sold separately from the editorial. No vendor can pay to be included, to move up, or to be removed.