DEV Community • 2026-04-17 07:39

Axios CVE-2025–62718: The Silent SSRF Bug That Could Be Hiding in Your Node.js App Right Now

How a simple hostname comparison flaw in Axios can let attackers bypass your proxy protection entirely and what to do about it. A Security Alert Landed in My Inbox A GitHub Dependabot alert flagged a critical security vulnerability in Axios across one of our repositories. The title read: _Axios has a NO_PROXY Hostname Normalization Bypass Leads to SSRF _ My first reaction was the usu...

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DEV Community • 2026-04-17 07:37

We Started a Startup, Got One Client, and It Broke Us Apart

I want to tell you about the most chaotic, frustrating, and honestly hilarious chapter of my life as a developer. The Job That Taught Me Everything (Except Boundaries) Before all of this, I was working at a company as a Python Developer. Junior title, but the work was anything but junior. I ended up handling Cloudflare security, cloud integrations, API integrations — things way outs...

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Data Pipelines Explained Simply (and How to Build Them with Python)
DEV Community • 2026-04-17 07:34

Data Pipelines Explained Simply (and How to Build Them with Python)

Data pipelines are the backbone of modern data-driven organizations. They automate the movement, transformation, and storage of data - from raw sources to actionable insights. Python has become the go-to language for building scalable pipelines because of its rich ecosystem, flexibility, and ease of use. This guide walks through the fundamentals, tools, and best practices for building robust dat...

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DEV Community • 2026-04-17 07:30

The Hidden Cost of AI Systems Nobody Talks About.

AI isn’t expensive. Bad AI systems are. 💸 The Illusion: “AI is Cheap Now” With APIs and open-source models, it feels like: Spin up a model Plug in an API Ship a product 👉 Done. But that’s the demo illusion. 🚨 The Reality: Cost Starts After Deployment The real cost of AI systems doesn’t show up when you build them. It shows up when you: Run them continuous...

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undefined vs undeclared, and how typeof behaves
DEV Community • 2026-04-17 07:29

undefined vs undeclared, and how typeof behaves

🧩 1. What is undefined? let a; console.log(a); // undefined ✅ Meaning A variable is declared in memory but not assigned a value 🔬 Behind the scenes During creation phase: a → undefined So: Variable exists in memory Value is default-initialized to undefined ❌ 2. What is undeclared? console.log(b); // ReferenceError ❌ Meaning Variable was never declared at all 🔬 Behind...

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Student-Led Campaigns That Successfully Reduced Bullying
DEV Community • 2026-04-17 07:23

Student-Led Campaigns That Successfully Reduced Bullying

Bullying prevention has traditionally been driven by teachers and school policies. However, schools are increasingly recognizing the powerful role students themselves can play in creating positive change. Student-led campaigns are proving to be highly effective in reducing bullying by influencing peer behaviour and shaping school culture from within. When students take ownership of promoting resp...

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DEV Community • 2026-04-17 07:22

Weekly Dev Log 2026-W01

🗓️ This Week 📱 iOS (SwiftUI) Worked on the SwiftUI tutorial and completed Section 4 Steps 9–12 (Create an algorithm for badges) 🌐 Web Development Started posting articles on Dev.to Managing my articles using GitHub and GitHub Actions 🔐 Security (TryHackMe) Completed OWASP Top 10 2025: IAAA Failures and Application Design Flaws on TryHackMe ...

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Hacker News: Front Page • 2026-04-17 07:20

FIM – Linux framebuffer image viewer

Article URL: https://www.nongnu.org/fbi-improved/ Comments URL: https://news.ycombinator.com/item?id=47803323 Points: 5 # Comments: 1

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DEV Community • 2026-04-17 07:20

Why the Pax A920 Pro is a Game-Changer in Smart POS Systems

The way businesses accept payments has changed a lot over the past few years. Earlier, payment machines were simple tools used only to swipe cards or print receipts. They were fixed in one place and could not do much beyond basic transactions. But today, customers expect faster service, more payment choices, and smoother checkout experiences. Because of these expectations, businesses are moving to...

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DEV Community • 2026-04-17 07:19

The Agent Economy Has a $0 Problem

Your Agent Can Code. It Can’t Earn. Here’s a stat that should bother you: AI coding agents now resolve 49% of real-world GitHub issues autonomously on SWE-bench. Claude Code hits 77% on verified benchmarks. Codex runs parallel sessions. Devin picks up issues and ships PRs. These agents are good. And yet, if you try to point one at a freelance platform to earn money, it earns exactly $...

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DEV Community • 2026-04-17 07:18

I Got Tired of Rewriting Audit Logs in Spring Boot — So I Built nerv-audit

Every backend system eventually hits this moment: “Who changed this record?” “What was the previous value?” “When did it happen?” Simple questions… until you actually need answers in production. The Problem In most of my Spring Boot projects, I relied on Hibernate Envers. It works—but in real systems, it starts to hurt: You repeat the same setup across services Audit queries ...

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NIST Limits CVE Enrichment After 263% Surge in Vulnerability Submissions
The Hacker News • 2026-04-17 07:14

NIST Limits CVE Enrichment After 263% Surge in Vulnerability Submissions

The National Institute of Standards and Technology (NIST) has announced changes to the way it handles cybersecurity vulnerabilities and exposures (CVEs) listed in its National Vulnerability Database (NVD), stating it will only enrich those that fulfil certain conditions owing to an explosion in CVE submissions. "CVEs that do not meet those criteria will still be listed in the NVD but will not

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DEV Community • 2026-04-17 07:05

Dreaming Is Useful. Structured Memory Is Better

Dreaming Is Useful. Structured Memory Is Better I ran OpenClaw Dreaming for a full week on top of my existing memory stack to answer one question: does Dreaming actually improve memory quality, or does it just inflate memory volume? Both. It surfaced real signal I would have lost. It also dumped enough boilerplate into the promotion stream to prove structured memory still has to be the...

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DEV Community • 2026-04-17 07:01

I Tried to Create GPT With Pure Math and No Training — Here's Where It Broke | Shivnath Tathe

The Question What if we skipped training entirely? Every language model — GPT, LLaMA, BERT — learns by optimising a loss function over millions of gradient steps. But the underlying data is just text: words appearing near other words. Co-occurrence. Counting. So I asked: how far can pure mathematics take us toward text generation, without a single training step? I built the whole thi...

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DEV Community • 2026-04-17 07:01

I built 3 MCP servers so I can ask Claude about my DevOps stack

Every time something looked off in production, I'd switch between 4 tabs: Prometheus → check metrics, kubectl → check pods, Grafana → check dashboards, terminal → check logs. So I built MCP DevOps Pack — 3 MCP servers that let Claude Desktop talk to your infra directly. ## What's included | Package | What it does | |---------|-------------| | @peachjed/mcp-prometheus | PromQL queries, fir...

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SitePoint • 2026-04-17 07:00

How to Test Accessibility Across Multiple Locales in React Apps.

null Continue reading How to Test Accessibility Across Multiple Locales in React Apps. on SitePoint.

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DEV Community • 2026-04-17 07:00

Azure ML Feature Store with Terraform: Managed Feature Materialization for Training and Inference 🗃️

Azure ML Feature Store is a specialized workspace that manages feature engineering, offline materialization to storage, and online serving with Redis. Terraform provisions the infrastructure, SDK defines feature sets. Here's how to build it. In the previous posts, we set up the ML workspace and deployed endpoints. Now we need consistent features feeding those endpoints. Training uses historical f...

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5m read
Why does PHP need asynchrony?
DEV Community • 2026-04-17 07:00

Why does PHP need asynchrony?

"The most dangerous phrase in the language is 'We've always done it this way.'" — Grace Hopper PHP is one of the last major languages that still lacks built-in support for concurrent execution at the language level. Python has asyncio, JavaScript is natively built on an event loop, Go has goroutines, Kotlin has coroutines. PHP remains in the "one request — one process" paradigm, even though mos...

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DEV Community • 2026-04-17 06:59

2026 Goldman Sachs Coding Interview Real Questions & Solutions

Hi everyone, I recently completed the 2026 Goldman Sachs Coding Interview. The interview mainly focuses on real coding ability, data structure design, and problem-solving under pressure. This article shares the actual questions I encountered along with detailed explanations and Python solutions. Goldman Sachs interviews are typically LeetCode Medium level, sometimes involving design problems ...

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DEV Community • 2026-04-17 06:58

I built a database engine in pure C – here's what I learned

I recently built MiniDB Studio, a lightweight database engine in pure C (C11) as a learning project. Here's what I ended up building and what surprised me along the way. What it does B+ Tree indexing on id and age fields Hash indexes for fast exact lookups WAL-style crash recovery with CSV snapshot replay A native desktop UI built with raylib A lightweight query optimizer for range s...

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