container-security
Safeguard articles tagged "container-security" — guides, analysis, and best practices for software supply chain and application security.
446 articles
Kubernetes securityContext, Explained From Scratch
How security context in kubernetes actually works at the pod and container level, what kubernetes runasuser and capability drops do, and a sane default policy to start from.
How Do You Audit a Container Image for Security?
A container image audit inspects every layer of an image - base OS packages, application dependencies, secrets, and configuration - to find what an attacker could exploit before you deploy.
CVE-2026-42945: A Buffer Overflow in NGINX's Rewrite Module Reaches Into Your Kubernetes Clusters (May 2026)
Disclosed May 17, 2026 with public PoC and in-the-wild activity, CVE-2026-42945 is a buffer overflow in NGINX's ngx_http_rewrite_module. It affects core NGINX and the ingress controllers that wrap it, putting cluster ingress in scope.
Kubernetes Security Breaches: What Actually Happened in Real Incidents
Real Kubernetes security breaches rarely start with an exotic zero-day — exposed dashboards, misconfigured RBAC, and default credentials show up again and again.
The 4 best DevSecOps tools for a secure DevOps workflow
The 4 DevSecOps tool categories a secure pipeline needs — SCA, SAST, container/IaC scanning, secrets scanning — with real incidents and fixes.
Writing a Secure Node.js Dockerfile: Best Practices That Hold Up
A secure Node.js Dockerfile pins a specific base image, runs as a non-root user, and uses multi-stage builds to keep build tooling out of production. Here is a hardened template and why each line matters.
k8s securityContext: How to Lock Down Kubernetes Pods and Containers
The k8s securityContext is your first real control over what a container can do at runtime. A field-by-field guide to a hardened, non-root pod spec.
Docker Rebuild Strategies: Cache and Layers Done Right
Docker rebuild speed and security both come down to how you order layers and invalidate cache — get it wrong and you either wait ten minutes per build or ship stale, unpatched images.
CNAPP Security: What It Actually Covers
CNAPP bundles CSPM, CWPP, and vulnerability scanning under one label, but the exact scope varies widely by vendor — here's what a genuine CNAPP platform actually needs to cover.
Kubernetes Security Issues You Should Actually Worry About
The Kubernetes security issues that cause real breaches are rarely exotic zero-days. They are misconfigured RBAC, exposed dashboards, over-privileged pods, and unscanned images. Here is where to look first.
Dockerizing Node.js and PHP Apps: A Practical Guide
Writing a node js dockerfile and learning how to dockerize php application deployments both hinge on the same handful of decisions — base image, layer order, and what you leave out of the final image.
Kubernetes 1.33 Security Deep Dive
Kubernetes 1.33 shipped with meaningful security changes: stronger admission controls, expanded structured authorization, and several deprecations that will affect production clusters.
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