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O3 Security Image Scanner review

#19 of 30 in Container Image Scanning Tools

Deep image inspection combines layer-level findings, registry scans and SBOM generation.

7.6/10Editor score
O3 Security Image Scanner7.6 Visit O3 Security

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

O3 Security Image Scanner examines Docker, OCI, distroless and minimal container images layer by layer. It is aimed at security teams that need to inspect both image contents and how those contents entered an image, including teams working across small, mid-market or enterprise environments. Findings cover operating-system and application vulnerabilities, malicious binaries or scripts, embedded secrets, permission misconfigurations and provenance deviations. The emphasis is on detailed image analysis rather than a general-purpose security workflow.

The scanner’s depth is its clearest distinction. CVE matching includes the vulnerable package and the layer that introduced it, while secret discovery checks image history, including secrets deleted in later layers. It also looks for obfuscated scripts and unexpected startup or cron activity, and analyzes binaries in distroless and scratch images. Registry scans can run on push, pull or a recurring schedule; critical findings can block promotion. CycloneDX and SPDX SBOM generation supports teams that need software inventory alongside scan results.

O3 connects with Amazon ECR, Google GCR and Artifact Registry, Azure ACR, Docker Hub and GitHub Packages, as well as CI systems including GitHub Actions, Jenkins, GitLab CI, CircleCI, Bitbucket Pipelines and Azure DevOps. Its cloud integrations span AWS, Google Cloud and Azure. This breadth suits teams with mixed registries or pipelines, while buyers looking for a non-web platform should note that web is the listed platform. The contact-sales pricing model is less suited to buyers who need a self-serve purchase path. Choose O3 when layer-level analysis, registry automation and image promotion controls matter; consider alternatives if those capabilities exceed your scanning needs.

Questions about O3 Security Image Scanner

What does O3 Security Image Scanner run on? Web. It runs in the cloud.

What does O3 Security Image Scanner integrate with? 30+ integrations, including Amazon ECR, Google GCR, Google Artifact Registry, Azure ACR and Docker Hub.

Who is O3 Security Image Scanner built for? Small businesses, mid-market companies and enterprises (our editorial estimate).

O3 Security Image Scanner pros and cons

  • Where it wins
    • Shows vulnerable packages and the image layer that introduced them
    • Finds malware, unexpected startup or cron activity, and secrets in image history
    • Scans registries on push, pull or schedule and generates CycloneDX or SPDX SBOMs
  • Where it doesn't
    • Pricing uses a contact-sales model
    • The listed platform is web
    • Promotion blocking is specified for critical findings

O3 Security Image Scanner fact sheet, pricing and score →

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