Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Metro4Shell RCE (CVE-2025-11953) Is Putting Apps at Risk

A critical vulnerability known as Metro4Shell (CVE-2025-11953) has been identified in the React Native Metro development server, enabling unauthenticated remote code execution when exposed beyond localhost. Active exploitation is already underway, with attackers targeting exposed development environments to gain system-level access. For more insights on website and API security fundamentals, subscribe to our newsletter.

0-Click RCE in Claude Desktop: How AI Extensions Threaten Endpoint Security

The modern enterprise software ecosystem increasingly relies on desktop AI applications enhanced through extensible plugin or extension frameworks. These extensions are designed to improve productivity by enabling integrations with local files, browsers, APIs, developer tools, and internal systems. However, this same extensibility introduces a high-risk attack surface when extension permissions, sandboxing, and input validation are weakly enforced.

I Built a Production-Ready App in 20 Minutes with Claude Opus 4.6

My boss dropped a bombshell at 4:00 PM: build a secure, production-ready app from scratch by tomorrow morning. Instead of panicking, I put Claude Opus 4.6 to the test. In this video, I walk you through the entire end-to-end process of using an AI agent to architect, code, and debug a full-stack application. We’ll look at "Plan Mode," how the AI handles environment errors (like Windows SQLite issues), and most importantly, how we verified the AI's code for security vulnerabilities using Snyk.

CVE-2025-11953 - Metro4Shell RCE in React Native Metro Server

A critical unauthenticated remote code execution (RCE) vulnerability has been identified in the React Native Metro development server, with nearly 3,500 exposed instances currently reachable on the public internet. Tracked as CVE-2025-11953, also known as Metro4Shell, this flaw affects the Metro server used during React Native application build and testing workflows.

CVE-2025-59287 WSUS Vulnerability: Exploitation, Defense & Detection Explained

CVE-2025-59287 turns WSUS (Windows Server Update Services) into a high-value attack surface—and attackers are already abusing it. In this video, we break down how CVE-2025-59287 is exploited, what defenders should look for, and how to mitigate and detect attacks before damage spreads across your environment. What you’ll learn in this video: How attackers scan exposed WSUS servers on ports 8530 and 8531.

What are OWASP Secure Coding Practices? Top 10 Web App Security Vulnerabilities 2021 vs 2025

OWASP (Open Web Application Security Project) is a non-profit organisation that has been in existence since 2001. Its mission is to educate (provide direction) webmasters and security professionals about how to create, buy, and keep secure, trusted software applications.” In simple terms, OWASP is a group of application security companies and experts that work collectively to develop a list of the most serious security threats to web applications.

Snyk Finds Prompt Injection in 36%, 1467 Malicious Payloads in a ToxicSkills Study of Agent Skills Supply Chain Compromise

The first comprehensive security audit of the Agent Skills ecosystem reveals malware, credential theft, and prompt injection attacks targeting OpenClaw, Claude Code, and Cursor users Agent skills are reusable capability packages that instruct AI agents how to interact with tools, APIs, or system resources—and they're rapidly becoming standard in AI-powered development.

280+ Leaky Skills: How OpenClaw & ClawHub Are Exposing API Keys and PII

On Monday, February 3rd, Snyk Staff Senior Engineer Luca Beurer-Kellner and Senior Incubation Engineer Hemang Sarkar uncovered a massive systemic vulnerability in the ClawHub ecosystem (clawhub.ai). Unlike the malware campaign we reported yesterday involving specific malicious actors, this new finding reveals a broader, perhaps more dangerous trend: widespread insecurity by design. In this write-up, Snyk is presenting Leaky Skills - uncovering exposed and insecure credentials usage in Agent Skills.

Lessons From 2025: Zero-Day Exploitation Shaping 2026

Zero-day exploits were among the defining cyber threats of 2025, with high-severity flaws affecting platforms such as React2Shell, Oracle E-Business Suite (EBS), and CitrixBleed 2 highlighting how quickly zero-days can be weaponized and how damaging they can be. To help organizations understand the zero-day threat landscape, Outpost24’s threat intelligence team has compiled a review of the vulnerabilities they encountered in the wild throughout 2025.