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Debasis Biswas

Debasis Biswas

STATUS: ACTIVEDEVSECOPS & SEC

Securing pipelines, writing code, and protecting systems

>I specialize in_

Exploring cybersecurity, web development, and the intersection of security and modern software. Sharing knowledge about building secure applications, automating deployments, and staying ahead of threats.

Cybersecurity
DevSecOps
Automation
debasis@sec-portal:~
debasis@sec-portal:~$

Latest Posts

securitylinuxkernelcveprivilege-escalationdevsecopskubernetes
Copy Fail (CVE-2026-31431): A Universal Linux Privilege Escalation Vulnerability
A technical breakdown of Copy Fail (CVE-2026-31431): the kernel root cause, high-level exploitation flow, why it’s unusually reliable across distros, and what defenders can do to reduce risk.
May 2, 2026
10 min read
ansibledevsecopsinfrastructureautomationsecuritylinux
Getting Started with Ansible: Infrastructure Automation for DevSecOps ⚙️
A practical, beginner-friendly introduction to Ansible—inventory, playbooks, modules, and a real-world server hardening example you can adapt for DevSecOps.
April 10, 2026
9 min read
securitydevsecopsci-cdgithub-actionssupply-chainself-hostedvps
How a Single Pull Request Can Turn Your CI/CD Pipeline Against You🚨
Self-hosted CI runners execute untrusted PR code inside your network perimeter—turning a routine contribution workflow into a high-leverage compromise path.
February 3, 2026
6 min read
securitycvereact2shellvulnerabilityroot accessvps
React2Shell CVE (CVE-2025-55182): From React Frontend Bug to Remote Shell (RCE)
How abusing a React frontend vulnerability (CVE-2025-55182) can lead to remote code execution (RCE) and full server compromise.
December 31, 2025
3 min read
cloudcybersecuritybeginnertechnology
Introduction to Cloud Computing and Cybersecurity: A Beginner's Guide
A beginner-friendly overview of cloud computing and cybersecurity fundamentals.
July 4, 2025
2 min read
cloudvmvpsdockersecurity
How to Use VM, VPS, and Docker Together for a Secure Cloud Workflow
Learn how to combine virtual machines, VPS, and Docker for a robust and secure cloud development workflow.
July 4, 2025
4 min read

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