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Vulnerability Management

The libwebp heap overflow that patched half the internet: CVE-2023-4863

One heap buffer overflow in a 15-year-old image codec forced Chrome, Firefox, Edge, Electron apps, and entire Linux distros to ship emergency patches within days.

Jul 8, 20266 min read
Application Security

WebAssembly's security model: sandbox guarantees and the attack surface that remains

Two Critical Wasmtime sandbox-escape CVEs landed on the same day in April 2026 — proof that a wasm sandbox is only as strong as the runtime enforcing it.

Jul 8, 20267 min read
Application Security

Web cache poisoning: attack mechanics and prevention

A 2024 academic scan of the Tranco Top 1000 domains found roughly 17% vulnerable to web cache poisoning — here's how the attack works and how to stop it at the edge.

Jul 8, 20266 min read
Vulnerability Management

CWE vs. CVE vs. CVSS: The Vocabulary Every AppSec Team Gets Wrong

One CWE weakness class can spawn thousands of CVEs, and a single CVE can now carry two different CVSS scores at once — most teams still use the terms interchangeably.

Jul 8, 20267 min read
Application Security

Building Secure VS Code Extensions: A Developer's Guide

VS Code extensions run as trusted Node.js code with full disk and network access and no permission model to fall back on. Here is how to build one that does not become the next supply chain incident.

Jul 8, 20266 min read
Application Security

Verifying webhook signatures correctly

Stripe gives you a 5-minute replay window and GitHub a raw-body HMAC — but most outages trace back to one bug: verifying JSON after it's been re-serialized.

Jul 8, 20267 min read
AI Security

Vetting third-party agent skills before you install them

AI agent skill marketplaces run installed code with your full permissions and no sandboxing — VS Code's 2025 extension attacks show exactly how that gets abused.

Jul 8, 20266 min read
Vulnerability Management

Using EPSS scores for vulnerability remediation prioritization

EPSS predicts exploitation probability for every CVE on a 0-1 scale, updated daily. Paired with CVSS, it turns a 1,000-ticket backlog into a short, defensible list.

Jul 8, 20267 min read
Cloud Security

The most common infrastructure-as-code security risks, with Terraform examples

AWS S3 buckets are private by default, yet public-bucket findings still top every cloud posture scan — because Terraform's own access-block resource defaults to open.

Jul 8, 20266 min read

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