Cybersecurity CVE-2026-31431 "Copy Fail": How a 9-Year-Old Linux Kernel Bug Gives Any Local User Root in 732 Bytes CVE-2026-31431 chains AF_ALG, splice(), and authencesn's ESN scratch write into a deterministic 4-byte page cache write that gives an unprivileged local user root. Full technical breakdown, exploit mechanics, detection, mitigation, and patch status per distro.
Cryptography RSA in JavaScript Part 2: The JWT Is Where You'll Actually Meet It Most JavaScript developers never call an RSA function directly. They verify an RS256 token, and two classic attacks turn that into an authentication bypass — both demonstrated here, both fixed by one line.
Monthly Roundup Monthly Roundup — April 2026 The six biggest articles from CoderOasis in April 2026 — local LLMs, self-hosted stacks, Claude Mythos breaking Firefox, the r/programming AI ban, Stable Diffusion, and the sandbox escape that changed everything.
Self Hosting How to Self-Host Your Own Email Server With Mailcow in 2026 — Complete Setup Guide How to Self-Host Your Own Email Server With Mailcow in 2026 — Complete Setup Guide Meta Description: Stop letting Google and Microsoft read your email. This guide sets up a complete private email server with Mailcow on a NetCup VPS — DNS, SPF, DKIM, DMARC, TLS, webmail, and mobile clients.
Self Hosting Featured The Complete Self-Hosted Productivity Stack: Nextcloud, Vaultwarden, Immich, Jellyfin, and Paperless in 2026 Replace Google Drive, Google Photos, 1Password, Plex, and your document scanner with a self-hosted stack that runs on your hardware. Complete Docker Compose setup with Traefik, Nextcloud, Vaultwarden, Immich, Jellyfin, and Paperless-ngx.
Web Servers How Authentication Actually Works Authentication is a cornerstone of contemporary applications. Virtually every app demands user login, identity verification, and secure sessions. Though it's ubiquitous, many developers implement authentication without a complete understanding of it's inner workings. This article breaks down authentication step-by-step, explaining the core concepts used
Artificial intelligence Stable Diffusion Local Setup: RTX 3090 vs Apple Silicon Real cost and speed comparison for running Stable Diffusion locally — RTX 3090 vs M3 Max, with a full setup walkthrough.
Cybersecurity Europol Just Warned 75,000 People They're Under Investigation for DDoS Attacks — Here's How the Whole Criminal Industry Works On April 13, 2026, law enforcement from 21 countries seized 53 domains, arrested 4 people, and sent 75,000 warning emails to identified users of DDoS-for-hire platforms. They found 3 million criminal user accounts on seized servers. Operation PowerOFF has been running since 2018.
Web Development TypeScript 7.0 Beta Is Out — The Compiler Is Now Written in Go and It's 10x Faster TypeScript 7.0 Beta dropped yesterday. The entire compiler has been ported from TypeScript/JavaScript to Go, and the numbers are real. The Sentry codebase drops from 133 seconds to 16. Editor startup drops from 9.6 seconds to 1.2. Memory usage is roughly halved.
Cybersecurity Claude Mythos Found 271 Zero-Days in Firefox 150. This Is What the New World Looks Like. In February, Anthropic's Frontier Red Team used Claude Opus 4.6 to find 22 vulnerabilities in Firefox in two weeks — more than were reported in any single month in all of 2025. Then Mythos arrived. Firefox 150, released today, patches 271 vulnerabilities found by Claude.
Cybersecurity Google and Cloudflare Set a 2029 PQC Deadline. The Rest of Big Tech Did Not. Two papers dropped at the end of March. Both said the same thing in different ways: the quantum threat to elliptic curve cryptography is closer than we thought. How close? The kind of close that made Google set an internal deadline five years ahead of what the US government asked
Cybersecurity One Employee. One OAuth Token. The Vercel Breach Explained Vercel confirmed a security breach on April 18-19, 2026, tracing back to a compromised third-party AI tool and a single employee's Google Workspace connection. Here is the full attack chain, what was actually exposed, and what you need to do right now.
Cybersecurity What is OAuth? Every time you click "Sign in with Google" or "Connect your GitHub account," you are using OAuth. You have used it hundreds of times. Most developers have implemented it at least once. And the April 2026 Vercel breach, which exposed credentials for hundreds of organizations, happened
Minecraft Featured Your Minecraft Server Isn't Slow, It's Misconfigured Can't keep up! is not a hardware message. It's the server telling you a tick took longer than 50ms, and almost every cause is a default nobody changed. Here's what actually moves MSPT, with the flags that are now wrong and the setting that isn't where every guide says it is.
Artificial intelligence Build Your Own AI Coding Assistant With Access to Your Entire Codebase (2026) GitHub Copilot charges $19/month and sends your entire codebase to Microsoft's servers. You can build something better — one that knows your whole project, costs $0/month after hardware, and never phones home.
Minecraft Bukkit, Spigot, Paper, Folia: What You're Actually Running There is a fifteen-year fork tree underneath every Minecraft server, and most admins copy a jar without knowing what's in it. Here's the whole chain, with the code — including the config key most DAB guides get wrong.
Cybersecurity CVE-2026-33032: The nginx-ui MCP Vulnerability That Hands Attackers Full Server Control CVE-2026-33032, dubbed MCPwn, is a CVSS 9.8 authentication bypass in nginx-ui's MCP integration that lets any attacker on the internet restart your Nginx server, rewrite your configs, and intercept all traffic -- in two HTTP requests, no credentials required. Roughly 2,700 instances are exposed.
Linux Linux 7.1 MMC Changes Finally Land After Linus Called the 7.0 Submission "Complete Garbage" Back in February 2026, Linus Torvalds rejected the entire MMC subsystem pull request for Linux 7.0, calling it "complete garbage" and "untested crap" because it didn't build properly and bypassed linux-next. Linux 7.1 gets it right.
Cybersecurity BlueHammer: The Unpatched Windows Zero-Day That Weaponizes Microsoft Defender Against Your Own System BlueHammer is an unpatched, publicly released Windows local privilege escalation exploit that chains Microsoft Defender's update workflow, Volume Shadow Copy, Cloud Files callbacks, and opportunistic locks to reach NT AUTHORITY\SYSTEM from a standard user account.
Cybersecurity Anthropic's Claude Now Requires Government ID and a Selfie — Users Are Furious Anthropic quietly rolled out identity verification for Claude subscriptions, asking for passports and live selfies via third-party vendor Persona. ChatGPT and Gemini require neither. Here's why this decision is a mess, who's actually affected, and what Persona's track record means for your data.
Artificial intelligence AI Agents Are Breaking the Internet. The Numbers Are Staggering. ChatGPT. Claude. GitHub. All of them went down — repeatedly — and it's not a coincidence. AI agents are generating traffic at a scale human developers never could, and the infrastructure holding up your entire dev workflow was never designed for this.
Artificial intelligence Claude Mythos Hacked Every Major OS, Escaped Its Sandbox, and Emailed a Researcher Eating a Sandwich. We Need to Talk. I use AI as a tool. I'll say that upfront. Claude helps me write frontends faster. It handles search queries that Google stopped being useful for three years ago. I hand it boilerplate I've written by hand a thousand times and I get time back. That&
Artificial intelligence Anthropic Just Wrote Apache a $1.5M Check. Here's Why That Number Is Both Impressive and Embarrassing Anthropic's $1.5M donation seeds a $10M Responsible AI Initiative at the Apache Software Foundation. That's more than half of ASF's entire annual budget in one shot — which tells you everything about how badly the open source infrastructure powering AI has been underfunded.
Artificial intelligence Featured Your Code Doesn't Have to Leave the Building A local LLM is three layers: weights on disk, a runtime that loads them, an interface that talks to it. Once you see the stack that way, the hardware question answers itself and the tuning stops being guesswork.
Cybersecurity CVE-2025-62718: Critical Axios SSRF Vulnerability Explained A critical SSRF flaw in Axios was used in a North Korean supply chain attack. Here's what it does and how to patch it today.
