container-security
Safeguard articles tagged "container-security" — guides, analysis, and best practices for software supply chain and application security.
446 articles
Auto-Fix Vulnerabilities FAQ: Patching Code and Containers Automatically
How automated vulnerability fixing works across source code and container images — direct and transitive dependencies, breaking-change safety, and where human review belongs.
Container Security Fundamentals
Containers made shipping software faster, but every image is a stack of inherited software with its own attack surface. This guide covers the fundamentals: what a container really is, where the risks live, and the practices that keep images and runtimes safe.
Node.js Docker Security Best Practices
A Node.js container is only as secure as its base image, its user, and its dependency layer. This is a Dockerfile-by-Dockerfile walkthrough of hardening a Node app image — multi-stage builds, non-root, distroless, and layer hygiene.
What Is Privilege Escalation? A 2026 Explainer
Privilege escalation is how a limited foothold becomes full control. This explainer covers vertical vs. horizontal paths across Linux, containers, and cloud IAM.
Reducing Docker image build time without sacrificing security
Multi-stage builds and minimal base images can cut CI build times dramatically — and they're the same changes that shrink your CVE attack surface.
Why You Need a Kubernetes Admission Controller
RBAC decides who can call the Kubernetes API — it has no concept of what a pod spec contains, which is why privileged containers still slip through into clusters every day.
Race Conditions (TOCTOU) in Application Code
From Dirty COW to runc's CVE-2021-30465, TOCTOU race conditions keep slipping past code review. Here's why they're invisible to standard tooling — and how to catch them.
Docker Secrets Management: Stop Baking Credentials Into Images
A secret written into a Docker layer is recoverable forever, even after you delete it. Learn the build-time and runtime patterns that keep credentials out of your images entirely.
Securing Managed Kubernetes: EKS, AKS, and GKE Compared
A cross-cloud guide to hardening managed Kubernetes — the shared responsibility line, cloud IAM-to-pod integration, network policy, Pod Security Standards, and node hardening across EKS, AKS, and GKE.
Minimal Base Images for Security: A Practical Guide
Minimal base images cut CVE counts by up to 95% by shipping only what your app needs. Here is how to choose between distroless, Wolfi, Alpine, and scratch — and build on each safely.
Trivy vs Grype: A Neutral Open-Source Scanner Comparison for 2026
Trivy and Grype are both free, open-source vulnerability scanners loved by engineers, but they differ in scope and philosophy. An honest side-by-side, plus where a managed third option fits.
Containers Not Dropping Default Linux Capabilities
Docker grants every container 14 Linux capabilities by default. Here's why NET_RAW, SYS_CHROOT, and friends turn contained compromises into breakouts—and how to drop them safely.
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