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Sedat Özdemir

Posts on kubernetes

14 posts on kubernetes. Notes from public sources and my own test lab.

A Stowaway on the Container Ship: Hidden Dangers Behind Images and Safe Harbors

We used to brag about uptime records; now we get suspicious if a container lives longer than five minutes. Let's dive into why 'it’s dockerized' doesn't mean 'it's secure' and how to stop hidden threats in your image layers.

July 8, 2026·3 dk readcontainer-securitydevsecopsdocker

A Fox in the K8s Henhouse: RBAC Vulnerabilities and the Art of Container Escape

It's 4:12 AM, and a simple customer-feedback pod is suddenly trying to list all secrets in the production cluster. Let's dive into how over-privileged service accounts and lazy RBAC configurations turn a minor entry point into a full-blown cluster takeover.

June 28, 2026·4 dk readdevsecopsk8skubernetes

K8s: Conductor or Vulnerability Factory? Hidden Bombs in YAML Files

Let's talk about the 'dark side' of Kubernetes configurations. From over-privileged RBAC roles to container escapes, here is how those 'default' settings turn into a Red Teamer's playground.

June 14, 2026·4 dk readcloudsecuritycontainersecuritydevsecops

Is Everyone Root in Your K8s Cluster? Let's Stop the Orchestration Chaos

A deep dive into common Kubernetes security pitfalls like wide-open API servers and over-privileged RBAC roles, and how to secure them from a Red Teamer's perspective.

June 11, 2026·4 dk readdevsecopskubernetesrbac

The Calm Before the Runtime Storm: Container Escapes and Monitoring Strategies

The moment you spot `cap_sys_admin` in a privileged container, isolation is essentially dead. Let’s talk about how containers break, why the privileged flag is a disaster, and how to actually lock things down.

June 5, 2026·3 dk readcontainer-securitydevsecopsdocker

The Orchestrator or an Insider Trojan? Invisible Dangers in the Kubernetes World

Security has shifted from physical firewalls to the orchestration layer. Let's dive into the dark corners of Kubernetes security—from API Server leaks to RBAC misconfigurations—and talk about how to keep the cluster safe.

May 31, 2026·3 dk readcloud-nativedevsecopsk8s-security

Docker's 'Privileged' Trap: Trojan Horses Inside Containers

Think that --privileged flag is a lifesaver? Think again. Here is how container misconfigurations turn into open doors for attackers, based on my early career blunders and Red Team field experience.

May 28, 2026·4 dk readcontainer-securitydevsecopshardening

Handing Over Your K8s Cluster on a Silver Platter: Config Errors and Cold Hard Truths

Ever wondered how a single YAML line can turn your infrastructure into a public playground? Let's dive into common Kubernetes misconfigurations from a Red Team perspective and look at how to actually secure them.

May 26, 2026·4 dk readcontainer-securitydevsecopsk8s-security

Getting Lost in YAML: The High Cost of Leaving Kubernetes Security to 'Default' Settings

Think your K8s cluster is secure because it's 'running'? Think again. From RBAC nightmares to privileged pod escapes, let's look at why default settings are a Red Teamer's best friend.

May 20, 2026·4 dk readcontainer-securitydevsecopsk8s-security

Kubernetes: Orchestration Magic or a Trojan Horse Within?

Is your K8s cluster a secure fortress or just a playground for attackers? Let's dive into API server security, RBAC pitfalls, and why Base64 isn't encryption.

May 3, 2026·4 dk readcontainer-securitydevsecopsk8s-security

Getting Lost in the Kubernetes Labyrinth: Can You Truly 'Hacker-Proof' Your Cluster?

Ever felt the cold sweat of a cloud bill exceeding your company valuation? Let's look at Kubernetes security through a Red Teamer's lens and fix those common YAML blunders.

March 24, 2026·3 dk readcloud-nativek8skubernetes

Is Container Isolation a Lie? That Thin Line Between Docker Socket and Host

If you think your containers are bulletproof shells, think again. From Docker socket abuse to risky capabilities, let's talk about how that 'sandbox' can vanish in seconds and how to actually secure it.

March 19, 2026·4 dk readcontainer-securitydevsecopsdocker